1 Season
32 Episode
Unknown Number - Season 1 Episode 24
- Year: 2020
- Country: China
- Genre: Mystery, Crime, Sci-Fi & Fantasy
- Studio: Tencent Video
- Keyword: detective, murder, serial killer, criminal profiler, signal, police department, 时空来电, 信号
- Director:
- Cast: Du Chun, Li Xiaoran, Wang Tianchen, Ma Rui, Cheng Fang Xu, Zhao Qian Zi