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.
as Kang Kwon-ju
as Derek Jo
as Park Eun-Soo
as Park Joong-Ki
as Shim Dae-Sik
as Goo Gwang-Soo
as Han Woo-Joo
as Nick Jackson
Full cast details coming soon!
