When elderly Joseph Moreau and his young wife Therese offer refuge to starving young dramatist Paul Savary, gossips begin to spread rumors of a love affair between the wife and the writer. For the good of all concerned, Paul moves into separate quarters. One day Paul overhears the gossip again at a café and challenges the purveyor of the lie to a duel. Moreau, for his own satisfaction, takes Paul's place in combat and is mortally wounded. Moreau staggers to Paul's apartment where he discovers Therese, who has come to beg the writer to refuse to fight. The husband dies cursing the traitorous couple, and then it is revealed that the whole incident was the narrative of Paul's new play, which he is reciting to Moreau and Therese.