Tino is a painter and occasionally a singer. When he has an opportunity to replace an absent singer, he becomes a sucess as a masqued singer, "Le chanteur masqué". Lisa is a typist who becomes a successful singer, also as a masqued singer, "La chanteuse masquée". Tino the painter falls in love...
A story of the First World War, told in semi-documentary style, focusing on the iniquities of the German war machine, and with its dramatic center the sinking by a German U-boat of the passenger liner Lusitania in 1915.
Once their military service is over, the instrumentalists of a regimental orchestra find themselves in civilian life and decide to run a hotel themselves on the Côte d'Azur.
