

A mysterious woman in black moves in with married Manhattan thrill-seekers and helps one trick the other.
Acting
Simone Signoret's velvet threat — she never raises her voice, you still flinch.
Direction
Harrington's Sirk-by-way-of-Polanski atmosphere, all mirrors and unease.
Production
That penthouse set — wealth as its own kind of horror.

Director
Curtis Harrington
Trivia, insights & behind the scenes
Harrington, an openly gay director in Hollywood's closeted era, smuggled queer desire into mainstream thrillers through coded 'games' of seduction and disguise.
James Caan made this between his breakthrough in El Dorado and The Godfather — you can watch him figuring out how to weaponize his own charm.