In comparing this 1971 remake with its 1964 original, one immediately misses the presence of Barbara Steele, although in both titles the 'heroine' only makes her first appearance at the half hour mark. Director Antonio Margheriti must have felt the absence of color in "Castle of Blood," and really adds little else to this new version, with Michele Mercier's Elisabeth fleshed out to some degree, as we see more of her absent husband, barely seen in the original. All the plot elements are virtually identical, right down to the lesbian love scene, resulting in three corpses lying on the floor in roughly two minutes of lustful activity. It was definitely daring in 1964, but here is treated in such timid, predictable fashion that it loses all the bite of the original. The guest filled ball is the one sequence that adds more running time here, 106 minutes over 1964's 89, Elisabeth juggling multiple affairs while her husband is away in America, and both male and female lovers equally jealous to the point of murder. The main weakness in both versions remains the same, a skeptical journalist who doesn't engender audience empathy with his failure to discover what the audience already knows. I would recommend the black and white version with Barbara Steele over the color one, both of which aired twice on Pittsburgh's Chiller Theater, between 1976-1982.
Review of Web of the Spider
