Enrique kills a man for stealing him a check he has received due to an accident. However, things get complicated because it had not yet been cashed. This will force him to try to forge the signature and eliminate any suspect, including his girlfriend Clara, who works in a law office and who talked him about the check. Police tracks the case, but by chance Pedrito, the police inspector's son, is also investigating on his own.

Carlos López Moctezuma
as Enrique

Armando Moreno
as Inspector

Beatriz Aguirre
as Clara

Carolina Jiménez
as Julia

José «Saza» Sazatornil
as Dueño de la tintorería

Miguel Fleta
as Agente Pérez

Jesús Colomer
as Camarero

María Luz de Reyes
as Doña Ernestina

Juanita Espín
as Engracia

Manuel Fernández Pin
as Pedro