Through a mysterious Motorola phone, two detectives - one from the present, and the other from 15 years in the past - begin communicating and working together to solve cold cases.

Cast:Du Chun, Li Xiaoran, Wang Tianchen, Ma Rui, Cheng Fangxu, Zhao Qianzi,

Genre:Mystery, Crime, Sci-Fi & Fantasy,

country:China,

Production:Tencent Penguin Pictures,