When peasant girl Nives is deserted by smuggler Gino Lodi, she betrays him to the police. Police officer Enzo Cinti, who loves Nives, traces her to the Po River cane-fields, where she is working as a cutter to support herself and an infant son, and warns her that Gino has escaped from prison and is seeking revenge. She rejects his offer to protect her. Gino finds Nives, mourning the drowning death of their son. He surrenders himself to the police and then walks at Nives' side in the funeral procession.

Darien, a left-wing police informant, is forced to lure his old friend Sadiel to Paris, allegedly to film a television special about the Third World. Sadiel, the exiled leader of a North African state, is being hunted by the ruthless Colonel Kassar, who will stop at nothing to capture his political rival. Once Sadiel arrives in Paris, Darien realizes he has been manipulated. He tries to turn back the clock, not realizing what or who he’s truly dealing with.

In Pietro Mascagni's tragic opera, a soldier returns home from war to reclaim his former fiancée, only to find that she's married someone else in his absence, leading to jealousy, betrayal, and murder.