Blood and Black Lace (1964)

In the shadowy world of haute couture, a brutal murder sends tremors through the exclusive fashion house managed by the enigmatic Countess Christina Como and her lover, Max Morlan. Isabella, a young model, falls prey to a faceless murderer, her untimely death casting a shroud of fear over her fellow runway companions. In the aftermath of the crime, her diary – a Pandora's Box of secrets and scandals – vanishes, leaving a tantalizing trail of clues behind. Nicole, another model and confidante, stumbles upon the missing diary, stirring a dangerous curiosity. Under the cloak of night, she slips away to meet her boyfriend, Frank Sacalo, unwittingly catching the attention of the masked killer who lurks in the shadows, hungry for the secrets held within the diary's pages. However, the diary has already been pilfered by the opportunistic Peggy, who aims to eradicate any evidence that could tarnish her name. Her actions only serve to tighten the noose around her own neck, as the relentless killer claims her as the next victim. Inspector Sylvester steps into this web of deceit and murder, his suspects a motley crew that includes the blackmailing Frank, who strong-arms Marquis Richard Morell into providing an alibi. As the body count rises and the secrets of Isabella's diary tantalizingly unfold, the question remains: Who is behind the mask, and why is the diary so crucial to their deadly game? The answers lie hidden in the blood-stained pages of a diary and the shadowed corners of a world where beauty and death walk hand in hand.

Blood and Black Lace is a horror movie featuring Cameron Mitchell and directed by Mario Bava.

Blood and Black Lace is currently streaming for free (ad-supported) on Plex, Plex Player and Tubi TV and it's also available on Fandor, Fandor Amazon Channel, FlixFling and Screambox Amazon Channel.

It is also possible to buy Blood and Black Lace on Amazon Video and FlixFling.