Buio Omega is a film by one of Italy's infamous directors, Joe D'Amato. D'Amato wasn't particularly infamous for killing off animals like Rugero Deodato or Umberto Lenzi was but more for making sleazy movies filled with cheap looking gore and ridiculous sex scenes.
A young rich orphan loses his fiancée to voodoo doll mischief on the
part of his housekeeper who is jealous of his attentions. He digs his
girlfriend up, cleans her out, stuffs her, and puts her in bed at the
mansion. Following this, he tries out and disposes of a series of young
maidens, trying to find the right replacement for her, and the
disapproving housekeeper helps him with the disposals.
Buio Omega has a terrible beginning. As a viewer you have to fight your way through the first 20 minutes and make sure you don't pass out due to boringness. Scenes are build up insanely slow and are stretched out for absolutely no reason. Luckily after about 20 minutes hell starts to break loose. The gore is pretty awesome and the soundtrack that comes with it is actually quite good.
D'Amato is obviously inspired by cannibal and killer Ed Gein. Digging up graves, keeping the corpse of someone you love in your house like it's still alive, cannibalism etc. These are all things 50's maniac Gein did as well. Not to mention the housekeeper Iris who treats Frank (Our main character) like a little baby much like Gein's mother did to an already grown up Ed Gein.
Obviously the film is not entirely filled with blood and guts. There are some scenes where there ain't no killing and the director tries to develop the story. These are the moment you'll actually notice how shitty this movie is. Dialog is scarce and there is absolutely no character development (I still don't get why the main character started killing people).
On the other hand. Character development and dialog obviously aren't really the first things you think of in a movie made by a guy who also made movies like ''Porno Holocaust'' and ''Erotic Nights of the Living Dead''.
The fact is that Buio Omega succeeds at the points you want it to succeed. It has lots of gore, nudity and a great soundtrack. Any ''mainstream'' movie critic will destroy this movie 'cause in reality it's a crappy movie. Fans of 70's 80's gory shit will definitely like it though and those are the guys these movies are made for.