First air date: Jan 14, 2017
Episode duration: 01h 00m
Rating: (7.1) based on 55 votes
Status: Ended Seasons: 4
Episodes: 58
Starring: Lee Ha-na, Song Seung-heon, Son Eun-seo, Kim Joong-ki, Baek Sung-hyun
Created by: Ma Jin-won
Genre: Crime,
Drama Tag:
rescues
assassins
investigation
manhunt
psychopaths
Trailer
It's 3 minutes for hearers, but a life for the callers. A crime thriller chasing even the slightest sounds to rescue people's lives calling for urgent help.
