Blood Sucking Freaks (1976)

In New York's Soho district, the master of ceremonies Sardu runs the Theater of the Macabre, which specializes in acts where people are tortured and dismembered. The spectators dismiss it as fakery but the gore is real. Behind the scenes, Sardu and his dwarf assistant Ralphus torment and mutilate women for their own pleasure, as well as sell girls they have abducted into slavery. When the critic Creasy Silo contemptuously dismisses the show, Sardu has him kidnapped and tortured. At the same time, Sardu also abducts the ballerina Natasha Di Natalie and determines to break her will in order to make her agree to perform in his new show.