Murders in Chicago

The film opens with the accidental death of a construction worker, quickly followed by the suspicious demise of a prominent publisher. This sets the stage for a convoluted investigation involving a police coroner, portrayed by José Campos, and a vagrant, played by Fernando Sánchez Polack, who both seek the truth behind the events.

As the plot thickens, June, a secretary at the publishing company, finds herself entangled in a web of blackmail. The blackmailer possesses incriminating photographs of her with the deceased publisher, adding another layer of tension to the mystery. The film draws viewers into a labyrinth of deceit and investigation, making it an intriguing watch for fans of the crime genre from the late 1960s.