Release Message:  Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case. Starring Hye-su Kim.

Description:  Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case. (police communications to 1989) A mysterious walkie talkie allows a detective in 1989 to communicate with a cold case profiler from 2015; with the power of fore and hindsight the two not only solve crimes but prevent them from ever taking place. However a long standing murder case is closer to home than either realizes.