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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.
First Air Date : Jun 24, 2014
Last Air date : May 28, 2019
Episode : 121 Episode
Season : 3 Season
Runtime: 30 minutes
Studio: Tencent Video
Country: China
