Signal

First Air Date: 2016-01-22

Status: Returning Series

Rating: ⭐ 8.1/10 (154 votes)

Genres: Crime, Mystery, Sci-Fi & Fantasy, Drama

Overview: 
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.

Seasons: 2

Episodes: 17

Official Website