Kim Woo Bin, a rookie private detective who has a thirst for revenge from Lee Jong Suk. He considers Lee Jong Suk as the reason behind Woo Bin's father's death. To get close to him and then betray him and then kill him is what Woo Bin wantes to do. But strange feelings keep him away from doing so. Even though he gets many chances to kill him, he doesn't. As he digs deeper into his father's d