Hiss and Yell (1946)

Vera thinks shes witnessed a man decapitating his wife Actually shes only seen magician Bluebeard the Great rehearsing his act Still convinced that the magician is a killer Vera goes through all sorts of comic agony when she is forced to share the same train compartment with Bluebeard who doesnt help matters when he offers her a sandwich consisting of scrambled brains and tongue