When Joe Dolan (Michael Biehn) accidentally kills his father in a scam gone bad, his dying words lead Joe to his Uncle Lou (James Coburn). Lou is working on a con worth more than $2 million in diamonds. Eddie (Nicholas Cage), Lou's right hand man, sees Joe as a serious threat, and a rival for his girlfriend - the sexy Diane (Sarah Trigger). Diane seduces Joe into a love triangle that leads him to murder and desire. With millions in the balance , Joe gets deeper into the diamond sting. Double cons lead to triple cons as Deadfall hurtles toward the most twisted scam of all, and its surprising conclusion.