Mitch Baldwin (30) is in a deep rut. He lives with his parents and has no intention of leaving. At 18, Mitch won the County Lottery, $3.5M dollars. 12 years later he's broke, has no friends or love life, and is a laughing stock. With his dad retiring, talk of selling the house pushes tensions to a breaking point. Mitch convincingly suggests renting their spare room for extra cash. Tentative, his parents agree. Quickly, a charming, yet peculiar stranger shows up at their front door willing to pay cash -- this is Carl Lemay (40). Mitch sets rules for Carl, but the family's routine is instantly upset. Mitch notices mysterious details about Carl; his car's license plates are missing, his back story is vague, and he seems set on pushing Mitch out of his comfort zone. Yet Mitch is disarmed by Carl's charm and confides in him about some of his regrets. To Mitch's dismay, Carl begins to use the information to undermine Mitch and expose his faults. A battle of wits breaks out and turns into all-out war involving deception, humiliation, spying and revenge. The question is how far are these two prepared to go?