Boris Karloff is blind sculptor Franz Badulescu who lives in Spain with his evil wife, Tania (Viveca Lindfors), who blinded and crippled him during a murder attempt that appeared to be a car crash. Badulescu is working on a massive sculpture, using the skeletons of animals and humans as
his base, but, unbeknownst to him, Tania and her lover (Milo Queseda) are committing a series of grisly murders, boiling the corpses in acid, and giving the artist the bones. When a travel reporter (Jean-Pierre Aumont) who has been interviewing the artist catches on to the scheme, violence erupts.
One of Karloff's last films, this was shot in Spain in 1967 but wasn't released in the...