Derailed

A group of young people struggling to survive on the streets resort to theft to get by. Seeking a larger payout, they attempt to blackmail Hyeong-seok, a man who runs an underground karaoke business and exploits others. The plan fails, resulting in Ga-young being taken hostage by Hyeong-seok for ransom. As her friends try to rescue her, they are pursued by her former partner, a sociopath recently released from prison. This conflict forces the men involved into a violent struggle to protect those close to them.

This 2016 South Korean action crime film was written and directed by Lee Seong-tae, marking the first of two films he directed before By Quantum Physics: A Nightlife Venture in 2019. The movie features a cast including Ma Dong-seok, Minho, Kim Jae-young, and Jeong Da-eun, with a total of 27 credited performers. Produced by CJ Entertainment, Kidari ENT, and MCMC, the film has a runtime of 91 minutes. On TMDB, it holds a rating of 6.6/10 based on 41 votes.