Qin Feng is a young genius. He went to the police academy and failed because when he answered the reason for going to the police academy, he said that he wanted to finish it once. The perfect crime. Grandma asked Qin Feng to go to Thailand to find his distant cousin Tang Ren to relax. Tang Ren portrayed the number one detective in Chinatown in front of his family, but in fact he was an uncle with wretched advantages. After Tang Ren took Qin Feng for a night out, Tang Ren became a murder suspect. In order to prove his innocence, Tang Ren was still investigating the case when he led Qin Feng to the end of the world. Detective Huang Langdon pursued them, and the "kidnapping trio" caught them, because the person Tang Ren killed was their accomplice Songpa, and they felt that Tang Ren had taken the gold. After Tang Ren and Qin Feng escaped, they hid at Axiang's house and got some clues. Qin Feng came to Sinuo's house according to the clues. Sinuo and Songpa's son were classmates. She lied that she was violated by Songpa, so Sinuo's adoptive father killed Songpa. It turned out that it was the adoptive father who really had selfish intentions for Sinuo, and in the end the adoptive father jumped off the building and died in front of everyone. All this turned out to be a girl's scheme