Late at night, rain poured down in sheets. Detective Li Yue was leafing through an old detective novel in his study when the phone suddenly rang. Wang Ming, the captain of the criminal investigation squad at the municipal public security bureau, told him that a bizarre case had occurred and asked for his help. Li Yue agreed without hesitation and asked for the details. The victim was a young woman named Lin Ting, an office worker. When her body was found, she was holding a bouquet of flowers, and a smile still lingered on her face. She looked as if she were asleep. Strange symbols and numbers at the crime scene seemed to form some kind of code. After investigating, Li Yue discovered that the case might involve a cult. He and Wang Ming went through many twists and turns before finally locating the cult's hideout. They infiltrated it and found numerous followers performing some kind of ritual. They secretly filmed some evidence and prepared to leave. But the cultists spotted them. Surrounded and in grave danger, Li Yue calmly considered their options. He decided to use his detective skills to find the cult's weakness and defeat them. After a fierce struggle, Li Yue and Wang Ming finally overcame the cultists and brought them to justice. They solved the bizarre case and won justice for the victim, Lin Ting.
After hearing the story, Harry was filled with questions. He decided to go to the scene himself and see what had happened. He picked up his umbrella and left the office. The rain outside was still pouring, and there were hardly any pedestrians on the streets. Harry hailed a taxi and headed toward the city