7.7 by 20 users
- Released: 2012-05-30
- Genre: Mystery, Crime
- Number of episodes: 20
- Number of seasons: 1
- Stars: So Ji-sub, Lee Yeon-hee, Uhm Ki-joon, Kwak Do-won, Song Ha-yoon, Choi Daniel
- Director: Kim Hyung-sik, Park Shin-woo
