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.
'Yoon-il' proves his unwavering love to 'Hana' by cutting off his ear, and sets out to keep cut ear safely stored. However, their journey takes an unexpected turn when they encounter a man who, like Yoon-il, has also cut off his ear.
A criminal profiler begins questioning everything he’s ever believed about seeking justice after learning his daughter is linked to a murder case.
