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. Lee Ha-na, Son Eun-seo, Kim Joong-ki, Song Boo-gun, Baek Sung-hyun, Lee Jin-wook, Kim Woo-seok Added on Netflix 2020-03-01. Youtube Trailer