a a late go patron of the drive in thearers ( 1970 1980s ) and there be many movie that i have see and forget . this be one i could never forget . despite it low budget and exploitation style of movie making and the story be very well do . the isolated therapy asylum and where patient act out their fantasy in order to help cure their phsycosis and the accidental murder of the head doctor just a the new nurse arrives on the scene and the ( suppose ) assistant doctor take over and the various crazy paitents and the revelation that the assistant doctor be actually a patient herself and and and finally and the rescue of the young nurse by the simple mind sam and who kill everyone else in the house so she could escape unharmed and make for a great story and which hold the film together . i emphasise the word story because that what make a good or great film . no matter how much blood and gore and nudity and sexual matter and or outrageous behaviour you put in a film and if the story be not good and then the film be not good . the film credit show clip of all the actor and include the old hag with the final line tell you to get out and never come back and which be a great end to this film . if it be out on video or dvd and see it and enjoy it .