A group of would-be beneficiaries gather for the reading of a will, and discover that they must spend the night in a spooky castle to gain their inheritance. A spooky housekeeper and a man who seems to be a vampire are just two of the obstacles that might deter them.
| Actor | Role |
|---|---|
 María Eugenia San MartínMartha | Martha |
 Carlos RiquelmeSr. Méndez Mar | Sr. Méndez Mar |
 Héctor GodoyCarlos | Carlos |
 Ramón BugariniLicienciado | Licienciado |
 Yerye BeiruteSergio (as Jorge Beirute) | Sergio (as Jorge Beirute) |
 Hortensia SantoveñaElisa | Elisa |
| LLulú PargaLulú | Lulú |
 Fernando SotoAldo | Aldo |
 Joaquín García VargasPepe | Pepe |
 Armando ArriolaTomas | Tomas |
 Roberto CoboAlberto | Alberto |
 Pompín IglesiasCandido | Candido |
 José JassoAnastasio | Anastasio |
 Pascual García PeñaOscar | Oscar |
 Celia ViverosLupe | Lupe |
 Elsa CárdenasDecoy (uncredited) | Decoy (uncredited) |