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.
1992
1973
2022
2013
1975
2021
2023
2019
2020
1990
1995
1985
2006
2004
2002
2003
