Two detectives communicate through a walkie-talkie to solve a cold case. One detective exists in the present day, and the other detective exists 15 years in the past. Kentaro Sakaguchi, Kazuki Kitamura, Michiko Kichise, Yuichi Kimura, Tetsuhiro Ikeda, Kaede Aono, Fuju Kamio Added on Netflix 2023-04-20. Added on Hotstar 2022-08-04.