sweet young nurse charlotte beale ( a charming performance by ravish redhead knockout rosie holotik ) go to work at a remote rural asylum run by dr. geraldine s. master ( the excellent annabelle weenick ) . among the motley assortment of colorfully craze patient be insatiable and aggressive nymphomaniac allyson king ( the luscious betty chandler ) and loopy judge oliver w. cameron ( a gloriously hammy gene ross ) and paranoid vietnam veteran sergeant jaffee ( nicely play by hugh feagin ) and gentle giant sam ( the amiable william bill mcghee ) and and nutty old hag mrs. callingham ( the supremely irritating rhea macadam ) . say patient be dangerously encourage to act out their fantasy by dr. master and which of course result in a rash of brutal killing . director s. f. brownrigg and work from a clever and suitably overwrought script by tim pope and do an expert job of create and sustain a suffocatingly dank and brood atmosphere of seethe madness and oppressive claustrophobia . robert farrar spooky score and the grimy set design and a few wild grisly murder and bruce b. alcott grungy no frill cinematography and plenty of deliciously robust and scenery scarf histrionics from a game no name cast ( ross in particular be a total eye roll hoot ) and and the genuinely shocking surprise bloodbath conclusion far add to the overall infectiously seedy fun of this choice trashy chunk of 70 low budget regional horror exploitation cinema .