Gun Mystery (2009)

Gun Mystery 2009 / 火线追凶之黑枪疑云 2009 / Huo Xian Zhui Xiong Zhi Hei Qiang Yi Yun , Huo Xian Zhui Xion 3 , 火线追凶3：黑枪疑云 , 火線追兇之黑槍疑雲 , 火線追兇3：黑槍疑雲

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... (Source: TMDb)