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
Song Seung-heon
Son Eun-seo
Kang Seung-yoon
Kim Jung-ki
Song Boo-gun
Baek Sung-hyun
Kim Jae-uck
