Sound Engineer
The Paladines write crime novels together. In a cinema, they happen to see a report on the consequences of a shipwreck in which Lieutenant Dupuis tells about the death of an old man in the lifeboat carrying the survivors. Husband and wife agree that this could be the starting point of a new story and go and see Dupuis to get more details about the drama. When they come to his hotel Dupuis is dead with a bullet in his head. Police characterizes the death as suicide but Paladine has found a train ticket in the dead man's pocket. With his wife he takes the train to the specified destination, somewhere in the provinces...
Sound
On his wedding day, Robert confesses his father-in-law that twenty years ago, he seduced a lady in a sleeping car of a train. His mother-in-law overhears the conversation and convinces Robert that she was that lady and that makes Robert's bride also his daughter. The wedding is in danger of being annulled when the trickery is finally discovered.