HOWL OF THE DEVIL
Alex (Paul Naschy), a rich, reclusive horror star, died (a suicide) in 1981. His lonely son (Naschy's son Sergio) now lives with Hector, Alex's nasty twin, an unsuccessful actor (Naschy), a servant, Eric (Howard Vernon), and a cook, Carmen (Caroline Munro, but sometimes a double). Hector dresses upas Rasputin, Fu Man Chu, or Blubeard and fools around with hookers, who are later found dead. The son watches his father's movies on TV, and various characters show up in real life.
A friendly Frankenstein monster, Mr Hyde, the Wolfman, Quasimodo, and the Phantom (all played by Naschy) appear. Meanwhile, Hector and a local priest lust after Carmen. This nutty Naschy overkill movie has nudity, some gore, a zombie, and the Devil himself. As Eric says, "He was a great actor". The print from spanish TV has been subtitled in English.