- HD 1080
- Runtime: 131m.
- Status: Released
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- Languages: ko
- Country: South Korea
- Director: Kim Sung-soo
- Stars: Jinyoung, Kim Young-min, Kim Dong-hwi, Song Geon-hee, Heo Dong-won
- keywords: based on novel or book, revenge, reformatory
- Production_studio: Finecut, Union Investment Partners, D Station (KR), Blue Plan'It
- Slogan: There is no end before I avenge my brother.
On a Christmas Eve, a lifeless body of teenage boy is found. The victim's revenge-driven twin brother checks himself into a juvie to hunt down the suspects.