Cantinflas, the boyfriend of the servant of a rich industrial man, gets into the house in order to kill a mad dog. Suddenly this man appears so the servant tells him that Cantinflas is his wife's brother (Leonardo), who had been lost for years. The rich man then remembers that his father in law's testament could only be paid when all brothers get together, so treats Cantinflas, a real bum, as a king.
Cantinflas
as Cantinflas
Joaquín Pardavé
as Cayetano Lastre
Sara García
as Clotilde Regalado
Sofía Álvarez
as Dolores del Paso de Lastre
Dolores Camarillo
as Paz 'Pacita'
Manuel Noriega
as Juez
Antonio R. Frausto
as Defensor
Agustín Isunza
as Fiscal
Antonio Bravo
as Bobby Lechuga, el Fox Terrier
Francisco Jambrina
as Leonardo del Paso
Joaquín Coss
as Magistrado
Eduardo Arozamena
as Juez sordo
