Régine, l'espionne de monsieur Beauchard
This talkative and unevenly paced feature finds Fou (Jean Lefebvre) the inventor of a gas that makes the users fall in love. He is chased by his boss, the police, and spies, who seek to secure the secret recipe for their own selfish purposes. A shadowy American underworld figure tries to intimidate the inventor. A half-hearted attempt at comedy tries to go along with the double dealing and trickery of the thin plot of the film.
Lily
Mathieu is a mild-mannered man engaged to a woman whose father is involved in running a house of prostitution. When the father dies, Mathieu inherits the bordello and is unprepared for his new position. He overcomes his shyness and becomes a sexual dynamo when his workers feed him some powerful amphetamines.
Mathilde
Séverine é bela, jovem, rica e frustrada com a vida que tem. Com o marido trabalhando o dia todo a moça resolve trabalhar num discreto prostíbulo todos os dias a tarde, o momento em que pode largar sua vida real e se tornar a Bela da Tarde sem que ninguém saiba. O problema é que os clientes que recebe são pessoas que podem estar tentando fugir da mesma vida vazia que ela.
