Œil de lynx, détective

Marc Lanterne and Monsieur Smith investigate the home of a castellan who is the victim of jealousy, justified by the way, of his wife. Monsieur Dunoyau wants to know the author of the anonymous letters he receives. After a whole series of extraordinary adventures, the truth comes out and Dunoyau is reconciled with his wife.

• Director: Pierre-Jean Ducis
• Cast: Armand Bernard, Alice Tissot, Janine Merrey, Paul Pauley, Ginette Leclerc, Jeanne Fusier-Gir, Charles Lemontier, Charles Dechamps