A diamond heist falls apart and the surviving criminals begin to suspect that one of their number is a police informant; the lives of two mob hitmen, a boxer, a gangster's wife, and a pair of diner bandits intertwine in four tales of violence and redemption; a stewardess, a gun runner, a bail bondsman, a shifty ex-con, a stoned-out surfer girl, and an earnest federal agent converge in a quest for a missing half million dollars.