A rental house in Shanghai caught fire. Yu Shengnan, a female professor at the Medical University, found a woman's body very suspicious, so he quickly called the chief inspector Zhong and his partner Han Fei. After preliminary autopsy and on-site investigation, Katsuo and Zhong Lang concluded that the deceased was murdered before the fire...
Unfortunately the movie Gun Mystery is not yet available on HBO Max.
| Directing | Hu Ming-Kai | Director |
| Directing | Billy Tang Hin-Shing | Director |
