Yang Guangyao wandered around for a long time, but found nothing unusual.He instead returned to the hospital where his daughter was staying, intending to visit his family, but the doctor told him after examination that his daughter's name was not in the hospital at all.At this moment, he seemed at a loss. He hurriedly ran to the street, borrowed a dollar from passers-by, and then called a nearby street corner, but still got nothing.He even returned to his home, but there was no sign of his family.Unwilling to be reconciled, he came to the stairwell where he was tracking the man in black again, and used his memory to ride the elevator desperately, but found that he was always spinning in the same place, and even the doorman who watched the door had not changed.

The frustrated Yang Guangyao wandered aimlessly on the street and finally walked into a bar.He noticed that illegal transactions were going on inside, and the police had blended in, asking everyone to show their ID cards to prove their innocence.He subconsciously touched his pocket, only to find that his ID card was missing, so he fled in a hurry.However, the female police officer quickly caught up with him and after a fight, other police officers arrived at the scene and took him away in handcuffs.

In the police station, Yang Guangyao was in despair.Suddenly, a middle-aged man walked into the interrogation room. He took a closer look and found that it was Yang Yaoguang, who had been missing for more than 20 years.Yang Yaoguang also recognized Liu Weitao. After the two exchanged words, Liu Weitao talked about his experiences in the past twenty years, including the fact that Yang Guangyao's wife searched for him throughout Hong Kong.After hearing this, Yang Guangyao decided to continue looking for his family and solve these cases.Unable to defeat him, his boss agreed to let him return to the police station as an undercover agent.He changed his name to Lu Jiajie and restarted his undercover career.

At the police station, they received a new call, a case of drowning in a bathtub.The deceased's cell phone had been charged. Yang Guangyao launched an investigation as a police officer and found that this was not a simple accident, but a deliberate murder.At the same time, Mai Zhihong, who was at large, committed another crime.Yang Guangyao and others discussed this case and found that it was strikingly similar to the serial murder case twenty-five years ago.They suspected that Mai Zhihong had committed another crime, but when they arrived at the mental hospital, they found that he had escaped.Yang Guangyao angrily blamed Liu Weitao for failing to catch the suspect, but the police are currently helpless.