It has, however, been screened in Hong Kong (since 1997 a Special Autonomous Region of China), at the Hong Kong International Film Festival, and at many film festivals around the world. The film has not yet been released in mainland China, as it must first be reviewed by China’s State Administration of Press, Publication, Radio, Film and Television, the Chinese film industry’s governing body. The film stars the Sichuan-born Chinese film scriptwriter and actor, Lu Yulai, and Chinese film director and actress, He Wenchao. Trap Street was filmed in the city of Nanjing in central East-coast China, and marks the directorial debut of female Chinese film-maker Vivian Qu ( 文晏), a former film producer, who also wrote the screenplay. The mood darkens, and Li himself then disappears from the bar. On their next meeting, in a bar, some weeks later, Guan seems reluctant to talk to him, much as on their first meeting, and uninterested in the many efforts he has made to locate her. He is then shocked to discover that the street has disappeared from his map, and the video from the CCTV camera is unobtainable. Losing contact with Guan, and unable to find her, Li decides to try tracking her down using the digital map he has created, and by accessing the video images off one of the CCTV cameras he has set up nearby. During a subsequent meeting, Li gives her the present of a satellite navigation device for her car, which impresses her, and they seem to become friends. He meets her and she now seems more interested in him. While looking for Guan, Li discovers her in an unlabelled street: it is called Forest Lane, and he sees Guan entering a mysterious building in it, known as Lab 23. However, Guan does not turn up, and a man arrives instead to collect the memory stick, asking Li for his home address so that he can thank him properly. He resolves to return it to her as soon as he can, and arranges to meet her at a local cafe. He offers her a lift home in his car, but after he has dropped her off, notices a small box with a memory stick inside it. She seems to be uninterested in him, but he persists, and soon becomes infatuated with her. One day, he finds an attractive young woman, and deciding to pluck up the courage to meet her, he tells her about his hobbies and the nature of his job.
During his spare time, he makes a little extra money by helping private clients to install CCTV cameras in places he has identified on his maps. Trap Street tells the story of a young digital map-making surveyor, Li Qiuming, who works for a digital mapping company in a city in Southern China.