Lu Guang and Cheng Xiaoshi receive a task from a client to expose fraud activ...
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Season 1 Episode 8: Lost Signal
Xu Shanshan, a friend, wants to know what her love interest Dong Yi said to her as she blacked out. Cheng (as Xu) chases a possible serial killer, a false alarm. In the present, a phonecall to Xu is answered by a strange man's voice.