Lucky Number Slevin

Slevin's life hasn't been going well. His apartment has just been declared a ruin, and he catches his girlfriend in bed with another man. In an attempt to get away from Los Angeles for a while, he moves to New York into the apartment of his friend Nick Fisher. But two of the city's worst gangsters, The Rabbi and The Boss, former partners who are now irreconcilable enemies, cross paths with him when one of them plans to avenge his son's death by killing the other's firstborn son. The solution to avoid a gang war: find a gambler who owes The Boss a lot of money and force him to kill the Rabbi's son.