Gabriel ,a so called artist ,spends his holidays in Segnac.He meets Violaine ,the innkeepers' daughter ,a terminally-ill girl in love with Blaise who is about to break up with his mistress,Michèle, who is not prepared to accept it.An old eccentric ,O Hara, offers his house to Violaine so that they can make love .But from the very first rendezvous,Michèle is here and a quarrel breaks out.Blaise kills her .As she 's got nothing to lose, Violaine admits to having done the murder.