What would a good man do to protect his family? How far will he go and how far is too far?

Jake Schiff is a successful New York lawyer trying to do right by his family. John Gates is a mentally disturbed man barely surviving on the streets. Their worlds collide violently when Jake's wife Dana tries to help John as a psychiatric patient. John decides that Jake has somehow usurped the life that was meant for him. He begins showing up outside the Schiffs' house and demanding his family back. Suddenly everything is called into question. Including the matter of who the real intruder is.

The Intruder is a tale of two lives, two cities, and how fate can quickly turn and go from saving lives to completely destroying them.