July 21, 1958. Madrid wakes up to the news that a pawnbroker has been murdered in his shop. Soon, police finds that the victim's associate, his pregnant wife and their maid have been murdered as well in their own home across the street.

Sancho Gracia
as Jarabo

María José Alfonso
as Mª de los Desamparados

José Manuel Cervino
as Inspector Hinojosa

Miguel Palenzuela
as Emilio

María Jesús Hoyos
as Paulina Ramos Serrano

Ricardo Palacios
as Ayudante Hinojosa

Carmen Lozano
as Esposa de Félix

Raúl Fraire
as Félix

Antonio Gamero
as Taxista

José Yepes
as Policía 1º