Honestly, i've always been pleasantly surprised by South Korean film productions. The film deserves that precious time, it's super good full of suspense, from the beginning to the end. This movie i recommend is inspired by some true story. The names of the characters and the events on display have been changed.
Just a little summary.
A gangster makes the team known to a police officer to detect a serial killer. Ok, interesting is that after surviving a violent serial killer attack, Jang Dong-su, a well-known thief, has to form a partnership with local detective Jung Tae-seok in order to catch the well-known criminal sadist. under the name of K.
In the end, i really liked the movie - The interaction between the two (the gangster and the detective) generated a lot of funny scenes, but also tense, you can read in their eyes the infinite hatred they have for each other, but they have nothing to do , interest wears the fez, the enemy of my enemy becomes my friend. The gangster, the cop, the devil is well-defined enough to keep you constantly connected to the scenes that take place in front of you. I recommend with confidence.