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.
Release Date
Jan 14, 2017 (TV-MA)
Episodes
4 seasons | 58 episodes
CREATED BY
CAST
Lee Ha-na
Kang Kwon-ju
Son Eun-seo
Park Eun-Soo
Kim Joong-ki
Park Joong-Ki
Song Boo-gun
Goo Gwang-Soo
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