The final act elevates the overall experience, presenting something of a novel twist on the usual Giallo tropes. Miraglia, who later helmed the superior if derivative Red Queen Kills Seven Times, breaks many of the traditions established by masters Bava & Argento, but for the most part these digressions produce only tedium, at least until the end. There's a longing here for a certain energy, or stylistic excess.
The final twist of the multiple climatic twists may justify some of its narrative problems and the fact that the first act feels light (and thus restrained) in its on-screen violence. But, this doesn't quite save the fact that it often feels directionless and oddly assembled in its characterization and often slugs along. Everything fits right in this giallo, but it's too downplayed in tension until it, well, has it.
Gothic/erotic giallo. Since the death of his wife Evelyn, Lord Alan Cunningham chases red-haired women, tortures them and finally kills them. Now he marries a blonde woman who hires five maids forced to wear blonde wigs. But Evelyn's ghost is starting to make public appearances and Lord Cunningham is very annoyed. Interesting Miraglia mise-en-scene and one or two references to Alfred Hitchcock. Recommended.