Mercedes works as a cabaret performer to pay for her sister's studies. Problems begin when Mercedes and Paco, her exploiter, win a dance contest, but he refuses to share the prize with her.
Marga López
as Mercedes Gómez
Miguel Inclán
as Lupe López
Rodolfo Acosta
as Paco
Roberto Cañedo
as Roberto
Mimí Derba
as Señora directora
Carlos Múzquiz
as Dueño cabaret
Fanny Schiller
as Señorita prefecta
Estela Matute
as Cabaretera; Amante de Paco
Silvia Derbez
as Beatriz Gómez
Luis Aceves Castañeda
as Complice de Paco (uncredited)
Francisco Reiguera
as Complice de Paco (uncredited)
Stephen Berne
as Hombre en cabaret (uncredited)
