In a castle, one stormy evening, Doctor Carter and a whole merry company find themselves welcomed by the four brothers who hold the place. The four obese disappear one by one, without leaving a trace.
| Actor | Role |
|---|---|
 André BruléLe docteur Carter | Le docteur Carter |
 Marguerite MorenoMme Heurteaux - l'espionne | Mme Heurteaux - l'espionne |
 Sylvia BatailleL'assistante de Carter | L'assistante de Carter |
 Lucas GridouxL'inspecteur Lenoir | L'inspecteur Lenoir |
| RRaymond GalleLe jeune marié | Le jeune marié |
 Marcel CarpentierLéon | Léon |
 Georges MortonJulien | Julien |
| PPierre MorenoNot listed | Not listed |
 Anthony GildèsNot listed | Not listed |
 Léon LariveMarcel | Marcel |
 Eddy DebrayNot listed | Not listed |
 Pierre AlcoverEugène | Eugène |
 Pierrette CaillolGinette | Ginette |
 Annie CarielNot listed | Not listed |
 Aline DebrayNot listed | Not listed |
| HHuguette ParcyLa jeune mariée | La jeune mariée |
| GGanyNot listed | Not listed |
| FFred PoulinFred | Fred |
| MMaurice MonnierNot listed | Not listed |
| LLérieuxNot listed | Not listed |