Production Finished
Voice
January 14 2017 – July 31 2021Rating
71
Based on
58 reviews
- Genres: Crime, Drama
- Episode runtime:
- Country: South Korea
- Companies: Content K, Studio Dragon, KEYEAST
- Network: OCN
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.
