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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. This is the Chinese adaptation of 2016 tvN drama Signal.
First Air Date : Oct 23, 2019
Last Air date : Feb 12, 2020
Episode : 32 Episode
Season : 1 Season
Runtime: 26:14 minutes
Studio: Tencent Video
Country: China
