Deep in the forest, a man and woman have been brutally attacked in a cabin and left to die. Arriving too late, Kang (Gam Woo-sung - R-Point) chases the killer only to be hit by a speeding car. Barely surviving surgery, he now finds himself a prime suspect in the double murder case. He cannot shake the feeling that there are strange gaps in his memory regarding the night in question and the killer's identity. While a police investigation sets out to confirm his story, he begins his own quest to remember the truth about the murder and himself.