Colin and his younger brother Gordon were raised by their single father William. Their mother passed away during childbirth. One day, William told the boys he would be going on a business meeting, but promised that he would be back during the night. However, William did not return home that night. The next morning, a few heavily tattooed men showed up, demanding for their payment. It was revealed that William's business had gone bankrupt. He had borrowed money from loan sharks to keep his business afloat. Besides, he had no money to pay his employees. The boys' nanny Gloria took out a sum of money and paid the employees, adding that she had no idea where William was, as he had abandoned the boys with her. Just then, Gordon returned to the house, saying that William had returned. However, he was nowhere to be found. Instead, his car was found abandoned at the garage. Neither Colin nor Gordon could believe William had abandoned them. Gloria woke the boys up during late night, claiming that she wanted to take them somewhere. When the boys arrived, they were stunned to see that they were outside an orphanage. Gloria suddenly turned and left, claiming that she could not take care of them due to her financial situation. Despite the boys' pleas to stay with her until William returned, Gloria refused to change her mind. As a result, Colin and Gordon ended up in an orphanage.
15 years had passed since William's disappearance. Colin and Gordon had graduated from the orphanage. They worked at a restaurant under restauranteur Dean Man, whom they shared a friendship with, as they had proved the restaurant employees innocent in a food poisoning case a year prior, preventing the restaurant from going under. Besides being professionally successful, their personal lives were also as successful, as Colin and Gordon were in romantic relationships with Dean's daughter Carol and her assistant Queenie respectively. However, they were still unsettled about being orphaned at a young age due to William's disappearance, which prompted them to volunteer at the orphanage where they grew up in. One day, after their visit to the orphanage, Colin decided to stop at a coffee shop in the vicinity, which Gordon agreed to. As they were eating, they heard someone call them. Colin and Gordon looked up and saw a middle-aged lady, whom they recognised as their old neighbour, Mrs Lam. They chatted, and in the midst of the conversation, Mrs Lam mentioned having seen Gloria, which prompted them to ask about her well-being. This surprised Mrs Lam, as she remembered Gloria saying she would take care of them. Colin told her that he and Gordon had grown up in the orphanage as Gloria claimed to be financially unstable and could not take care of them. "As a matter of fact, we haven't seen her since we were at the orphanage," he added. Hearing this, Mrs Lam frowned. According to her, Gloria suddenly paid her rent in full, which she felt was strange, as she knew that Gloria was usually behind her rent payment. Mrs Lam further mentioned that when she saw Gloria, she was running a thriving restaurant, and owned several properties. Strangely, she opened her restaurant and bought those properties shortly after William disappeared. What they heard starked in contrast with what Gloria had claimed back then. It occurred to them that William did not display any strange behaviour on the day he disappeared. Both Colin and Gordon realized that there was more to their father's disappearance than what they were told, and that Gloria could have been involved. Mrs Lam claimed that she had seen William at a nursing home. She then gave them the address of the nursing home where she claimed to have seen William.
With Mrs Lam's help, Colin and Gordon went to the nursing home where William was reportedly seen. However, they were told that he was recently taken by a young man claiming to be William's relative. They checked the CCTV footage of the nursing home, and saw a middle-aged lady and a young man take William away. Although it had been 15 years since they last saw Gloria, Colin and Gordon recognised her by her butterfly-shaped birthmark on her left arm. They each took a photo of the man in the CCTV footage. They split up and asked passers-by if they had seen the man in question. However, that did not yield results. Needing to take a break, Gordon stopped by a convenience store for a cup of coffee. Suddenly, he heard voices behind him. He turned around and saw the man in question. Gordon called Colin, who met him at the convenience store. They stealthily followed him to a service apartment, where he stopped at one of the units. When the man opened the door, Gordon forced his way into the unit, while Colin kept watch outside, while signalling him to keep quiet. William was found in the service apartment. He looked listless. Gordon suggested doing a DNA test, where he took William's toothbrush with him. According to the man, whose name is Justin, a lady in her 50s hired him to keep William in the service apartment. Gordon showed Justin a photograph of Gloria, and he confirmed that Gloria hired him. Colin paid Justin a sum of money to keep mum about their visit.
When the DNA results came out, Colin and Gordon opened the envelope. The DNA results confirmed their beliefs that William was indeed held in the service apartment. As they were about to go to the service apartment where William was held, they were waylaid by a few men, who beat them up and wrote in red ink those words "Mind Your Own Business". They were certain Gloria was behind the attack, as the thugs addressed them by their nicknames when beating them up. Besides Gloria, no one else addressed them by their nicknames. They suspected that Gloria had found out about their visit to the service apartment. Sensing that William was no longer safe, Colin immediately contacted Dean and told him what happened earlier. Dean immediately called the police. With police efforts, William was rescued and handed over to Colin and Gordon. They were happy to be reunited with their father after 15 years of being separated. They took William to their residence. He could not remember anything except his sons Colin and Gordon, and kept mentioning the name 'Gloria', which strengthened their beliefs that Gloria was involved. However, as there was no evidence to prove that she had kept William captive, she escaped prosecution. Just as Colin and Gordon thought all hope was lost, Dean found CCTV footage of the attack. As one of the attackers had priors, the police managed to track down all of them. However, they denied that Gloria had instigated them to attack Colin and Gordon. As such, police investigations came to a dead end.
One rainy night, William was awakened by the sound of thunder. Fragmentary memories came back to him in a flash. He told Colin and Gordon what had happened. It turned out that on the day he went missing, he went to the bank, intending to withdraw the money in his bank account to save his company. However, he was shocked to find out that all the money had been withdrawn. The bank manager retrieved the CCTV footage of the bank, and William saw from the CCTV that Gloria had withdrawn his money. Since he had authorized her with his finances, she did not face any difficulty in withdrawing the money. William could not believe that Gloria, whom he had helped in the past, would do this to him. He went to Gloria's rented apartment to look for her, but her landlord informed him that Gloria disappeared after paying her rent in full. As William was driving during the stormy weather, he saw Gloria walk along the road with a bag. He reversed his car, got out and confronted her. Instead of feeling remorseful, Gloria justified her actions, saying that she did not want to live in poverty. William tried to snatch the bag containing his savings, but Gloria refused to return it. A struggle ensued, and William was flung off the bridge. He hung precariously onto the railings of the bridge for dear life. Although he begged Gloria to pull him up, she pushed his fingers, causing him to fall into the sea. Before he fell into the sea, Gloria had muttered the words "I'll take over your assets and raise the boys on your behalf." He was found by some passers-by and ended up in a nursing home for years. Subsequently, Gloria found him at the nursing home and took him to the service apartment. After hearing William's account of what had happened, Colin and Gordon told him that they had grown up in an orphanage as Gloria claimed she could not take care of them due to her financial limitations. They were now certain that Gloria not only had a hand in William's disappearance, but she had also wanted to get rid of them as she considered them a liability. William was furious, as Gloria had taken him and his sons for a ride. However, since the statute of limitations had expired, no legal action could be taken against Gloria. William printed flyers and distributed them at the entrance of Gloria's restaurant. He even mentioned her full name and exposed her true colours. When Gloria saw the scene, she tried to forcefully take William away, but was deterred by the large crowd that had gathered. She warned Colin and Gordon menacingly that she would try to get rid of them again. However, being fully aware of Gloria's true nature, they remained unfazed. Dean, who had heard about William's plight, decided to help him out. He mobilised his connections from the media to publicise the matter and use public opinion to exert pressure against Gloria.
One day, Colin and Gordon were at the restaurant when a guest entered. It was Justin. Colin and Gordon served him hot food. This touched Justin, and he revealed that Gloria was indeed responsible for hiring thugs to attack them. He had recorded a video of Gloria instigating thugs to carry out the act, which he wanted to use as a leverage should things turn ugly. However, his wife had seen William's documentary and felt sorry for the former tycoon, so she asked Justin to help William and his sons instead. He decided to make things right. He also revealed how William had been mistreated when Gloria kept him captive at the service apartment. Saying his life was prison life would be a huge understatement. Gloria would forbid William from being in contact with the outside world, and served him leftover food from her restaurant. Justin further informed them that Gloria planned to fake Alzheimer's disease to avoid prosecution. After learning the facts, Gordon told Justin to ask Gloria to meet up. When they met, Justin showed Gloria a video of her instigating thugs to attack Colin and Gordon, and asked for a sum of money. However, she claimed she did not have the money, and asked for more time to raise the money. "What if I refuse?" she asked. "In that case, I'll have no choice but to hand over the tape to the police," Justin replied smugly. Gloria suddenly turned her head and smiled wickedly. "Do you think I'll be scared of you?" she asked menacingly. "Even if you report the matter to the police, who will believe you, a lowlife? I can simply get rid of you, like what I tried to do to William Cheuk and his 2 sons, and pretend I have Alzheimer's to avoid prosecution." Just then, police officers arrived. Justin had videotaped her entire confession, which had been broadcasted live. The actual video had been handed over to the police, which the video which Justin had shown to Gloria was nothing more than a reenactment by Dean and his employees. Gloria was swiftly arrested and brought to justice.
After Gloria's crimes were publicised, her restaurant folded and her properties were seized. As if to punish her further for her wrongdoings, Gloria was diagnosed with Alzheimer's while in custody, and she was admitted to a nursing home, which was under legal jurisdiction. Dean bought over Gloria's restaurant and properties, which he returned to William, Colin and Gordon. William took over the restaurant. With his adept business management skills, the restaurant thrived once again, and he rehired all of Gloria's former employees and hired new employees too. Not only that, the restaurant became a working partner of Dean's restaurant. The following year, both William and Dean were awarded 'Entrepreneur of the Year'. A double wedding was also held, which Colin and Gordon married Carol and Queenie respectively. Everyone cheered as they celebrated Colin and Gordon's joint wedding.
