Cab, a man with two faces, gets pulled back into the world he left behind when a mysterious kid appears at his door. The kid had no history and nowhere to go. After saving them from pursuers, he lets the kid stay with him. Slowly, Cab's own mysterious past gets unraveled as people from his past start to appear. He's then forced to face against the very organization that he had escaped from in order to pursue a normal life. Things get even more complicated when his every attempt at helping his charge live a normal life gets interfered by said organization and other entities. Murder, crime, conspiracy, mystery, betrayal..., Cab must balance his life as an assassin and a father-figure to protect those closest to him from death.