Les Films de l'Opale

A man in his fifties returns home accompanied by his dog. Arriving home, he begins to tidy up the belongings of his wife who he has just lost. When he opens his wife's Sunday bag, he discovers a photo of a stranger.

Weird noises are coming from the sink. Mrs. Merlin, the professor's neighbor, rushes to his house to ask for his help. Are the neighbor's pleas really justified? The professor is about to believe her.