Richard is a private detective. He makes a good money from marital infidelity: the deceived husband and wife generously paid him for proof of their infidelity "halves"...

During World War II a young Frenchmen sees his brother killed in Alsace by a German officer. He vows revenge on all Germans, but after the War he is conscripted into the French Army and sent to Indochina. There he meets his brother's killer under strange circumstances.

Marie, a young doctor, settles down on the Ouessant Island. She will be able to win the diffidence of the local population but she will have to fight for her independence after falling in love with an Italian engineer.

1953 film by Marcel Carné