Exorcismo finds a young woman named Leila (Grace Mills from Horror Of The Werewolf) participating in a Satanic ritual involving blood drinking and drug use. Unbeknownst to her, she becomes possessed by the spirit of long dead father. 

Her family understandably becomes alarmed when she starts to vomit and curse, and her behavior only gets progressively stranger the more they try and help her. Her brother fears that her no good boyfriend, who got her into the ritual in the first place, may have something to do with it and orders him to stay away from his sister, but this doesn’t do any good either and Leila continues to get worse. Eventually, both Leila’s brother and her boyfriend wind up dead, with their heads turned around an their necks broken. 

The family enlists the help of Father Adrian Dunning (Paul Naschy), the local Catholic priest. Dunning, an expert in all things evil, investigates the situation and eventually concurs that yes, Leila is in need of an actual exorcism. 

While certain elements of Exorcismo are certainly reminiscent of a similarly titled William Friedkin film, but the movie is more than a rip off of The Exorcist, even if there are a few too many similarities to be coincidental (the tumble down the stairs at the end, the make up effects, the floating bed – you get the idea). 

Naschy makes for a likeable priest though and it’s refreshing to see him cast against type as the hero of the film rather than as the antagonistic types he is so commonly associated with. As Father Adam he is both believable and sympathetic, never going too over the top in his role and always seemingly well grounded in his faith and his theology. Grace Mills does a great job in the dual role of the possessed/non-possessed Leila, lending her girlish features and good looks to bringing a sense of childish innocence to her part, but looking sufficiently sinister when made up to look possessed.

If you're looking for a remarkably original horror movie this one isn't going to cut the proverbial mustard for you, but it's still an entertaining romp through Naschy land with some truly bizarre imagery, a good performance from Paul, and some solid make-up effects during the films climax. 

The audio is presented in Dolby Digital Mono and is dubbed into English. There is hiss throughout and a few snaps and pops that occur but overall it's not as bad as you might think. Dialogue is easy enough to follow and the background music doesn't really overshadow any of the speaking in the film. It's far from a great mix, but it at least gets the job done.

The only feature available off of the main menu is chapter selection.