Darker

Genres: Crime, Drama, Comedy, Mystery

Counries: China

Companies: Tencent Pictures, Tencent Penguin Pictures

Seasons: 3 (121 episodes)

A series of serial killings is exposed and creates a stir among the public. A killer called "Darker" has been leaving a death notification card after killing scumbags who evaded the law. To counter the provocation of the mysterious killer, the police creates a special investigation team.