Amable is the drinking buddy of Paquito, a former medical student who plays Fanny's love, a cabaret singer and also with Conchita, a showgirl. One day, Paquito receives a telegram that his uncle Pancho vayaa asked to see his wife and other medical eminence to heal him his kidney ailment. Among all a hoax to mount Paquino not lose the inheritance from his uncle.
| Actor | Role |
|---|---|
 Fernando SolerDon Amable Corcuera | Don Amable Corcuera |
 Gloria MarínFanny | Fanny |
 Manuel MedelSeñor Feito | Señor Feito |
 Carlos OrellanaDon Pancho | Don Pancho |
 Carlos VillaríasDon Procopio | Don Procopio |
 Rafael BanquellsPaco | Paco |
 Carolina BarretConchita | Conchita |
| AAurora SeguraManuela | Manuela |
| AArmando VelascoDon Placido, cirujano | Don Placido, cirujano |
| EEdmundo EspinoDon Ovirio, médico | Don Ovirio, médico |
| AAlfredo VarelaDon Serapio, médico | Don Serapio, médico |
 Blanca de CastejónDoña Blanca | Doña Blanca |
| AAlfonso CartiInvitado a fiesta (uncredited) | Invitado a fiesta (uncredited) |
| FFelipe de FloresAnunciador cabaret (uncredited) | Anunciador cabaret (uncredited) |
| LLeonor GómezInvitada a fiesta (uncredited) | Invitada a fiesta (uncredited) |
| LLeonor de MartorelClienta en cabaret (uncredited) | Clienta en cabaret (uncredited) |
 Kiko Mendive(uncredited) | (uncredited) |
 Hernán VeraLic. Agustín Delgado (uncredited) | Lic. Agustín Delgado (uncredited) |