When Steven Grant, a mild-mannered gift-shop employee, becomes plagued with blackouts and memories of another life, he discovers he has dissociative identity disorder and shares a body with mercenary Marc Spector. As Steven/Marc’s enemies converge upon them, they must navigate their complex identities while thrust into a deadly mystery among the powerful gods of Egypt.

Marc Spector is a man who's been shattered into 4 separate identities who come together to become the hooded crusader of vengeance: The Moon Knight.