Irishman Michael Forsyth leaves blood-stained Belfast for New York and joins the gang of a gangster nicknamed Dark White. Thinking that he has found a safe roof, Michael begins to play dangerous games. He sleeps with the boss's mistress, which is risky anyway, even if the boss isn't a notorious gangster. Having received the task of going to Mexico City to pick up a shipment of drugs, Michael ends up in a Mexican prison, from where he manages to escape. Feeling that he has been “turned in,” he returns to New York with a desire for revenge, but very soon realizes that revenge is a double-edged sword.