Gloria (gorgeous Serena Grandi) is a publisher of a girlie magazine called "Pussycat" that features nude photos of female models. But someone starts killing people around Gloria. And she becomes frightened for her own life. Whoever it is likes to deceive and trick others by playing mind games.
Characters in this Italian giallo are upscale, high-class people and the costumes and sets reflect that elegance. There's not as much suspense here as in other giallos. But one sequence that is suspenseful takes place inside a large clothing store full of mannequins. Having discovered a just-murdered person, the trapped Gloria searches for a way out, only to hear a weird voice from somewhere in the building: "Now it's your turn Gloria; you can't escape." About midway through the plot, there's a scene wherein the killer's motive is described through dialogue and visuals. But the clue is wonderfully subtle.
Cinematography gives us sharp, vibrant colors. But when someone is about to be murdered, we see that person from the killer's POV, at which time the sharp colors morph into color-saturated hues of blue or orange. And the intended victim wears an ugly mask, presumably to represent the ugliness of the killer's thought processes.
Near the end, at the reveal, the killer looks very different from the killer's previous persona of normality. A look of insanity, or madness, appears on that person's face, possibly the result of overacting. I was quite surprised as to who the killer was. Reviewing the plot, I determined that it was highly improbable, but I could not find any overt plot holes.
I could have wished for more suspense. And the acting leaves a lot to be desired. But "Delirium" is worth watching for the nudity, as well as for that clothing store sequence and surprise ending.
