Anecdotes

This film was planned to incorporate three self-contained stories. The third part, based on the short story "If I Should Die Before I Wake", was excised because the first two stories already constituted a feature-length film, and the production company did not feel an audience would be willing to see a film longer than 120 minutes. It was released as the stand-alone feature Si muero antes de despertar (1952).

This film is an Argentine adaptation of two short stories ("Somebody's on the Phone" and "The Hummingbird Comes Home") by American crime and suspense fiction writer Cornell Woolrich, who is credited under his frequent pen name William Irish. Unlike most omnibus films, it does not feature a frame story.

This film was restored by the UCLA Film and Television Archive and presented in 2024 as part of the annual UCLA Film & Television Archive Festival of Preservation. The Golden Globe Foundation and the Film Noir Foundation funded the restoration project. Before the start of the screening at the Hammer Museum's Billy Wilder Theatre, Eddie Muller introduced the film, discussing both its production and its eventual rediscovery and preservation.

Premiered on "Noir Alley" on Turner Classic Movies, presented by Eddie Muller on 8 June 2024. Muller stated this was the North American broadcast premier of the film.

The roughly 80,000 pesos missing from the joint bank account equaled about $5,720 at the time, which equates to nearly $67,300 in 2024.