Guilty (2015)

Jack, a hitman, is slowly wandering into a red-light district. As he walks down the alley, everyone avoids eye-contact with him because of his extremely ugly face; Ting Ting is the only prostitute who doesn't reject him. Jack finds a scar on Ting Ting's stomach, her souvenir of a gunshot; Ting Ting on the other hand stares at the giant lump on Jack's face with no sign of fear. The two quickly form a bond until Jack cannot bear to leave Ting Ting and decides to rescue her from her miserable life at any cost. From then on, their lives turn out differently.