Baron Ivan Rassimov, a brilliant doctor, died horribly during a fire burst in his laboratory. Since that day, his daughter Tanja retired to a life of reclusion, covering with a dark veil her disfigured face. Professor Nijinski was once a student of Rassimov; he married Tanja, and he's trying to restore her lost beauty with a series of skin transplants. However, to reach his goal, professor Nijinski needs beautiful young victims for his transplant experiments.

A town awaits the arrival of a gunslinger to help defeat a gang of bandits, but a trio of misfits is mistaken for the anticipated relief.

The characters are two ruffians in various disguises: as false priests, they sell a rotten arm pretending it to be a relic of St. Luke; they cheat a stingy friar who abuses of the confessional to get rich and, once he finds out he's been cheated, gives himself sacramental absolution. They help the noble Filippo, disguised as a woman, in the alcove of the innkeeper's wife; they save from despair Fra Martino who had forgotten his underwear in his lover's house (one of them disguised as a cardinal retrieve the garment and expose it as a relic to the devotion of the faithful). To live with their lovers, Brother Jeronimo strives exorcisms and frà Partenope pretends to fight with the devil

A re-edited version of Mario Bava's "Lisa and the Devil" for the U.S. market, including newly filmed scenes involving a possessed Lisa.

Solomon and three friends find an embalmed dead body. Solomon refuses to accept there is anything supernatural in the house. He needs to believe if he wants to save the girl he loves from the ravenous blood spirit he has set free.