a psychopath be slice the head off of victim in car with a sword at a local drive in and it up to detective larry and mike ( bruce kimball and steve vincent ) to find out who it be . the drive in theater be once a carnival and many of those who work in it be employ . it could very well be the incredibly cranky and ornery and and all around rude theater manager and austin johnson ( newton naushaus ) whose foul attitude stink something rotten while once the barker and he have be leave to take care of the entire business while his former employer sell the farm and run off to hawaii or some place . another suspect be the half wit janitor and germy ( douglas gudbye ) who be an admitted former sword swallower and but seem too mild mannered and simple mind to be a killer . the main suspect be orville ( norman sherlock ) and a creepy peep tom and spot by germy hang around car and spy on certain couple make out . the detective attempt woefully to solve the case but their method be a bit suspect ( . why would you associate yourself with germy and a possible suspect and no matter how nice and hospitable he might be . ) . i mean two victim be kill in car not foot from where they be stake out . the major problem establish by a host of other user be the languid pace of the entire film . some interrogation sequence be stretch too long and we witness the uncomfortable cast languish with rather dire material . i do find the foul character of johnson rather amuse in how he describe everyone he come in contact with . never a kind word for anyone and he quite the misanthrope . johnson be the kind of character you yearn to see get stab in the throat with a sword . i also enjoy the opening beheading . but director seagall doesn not quite match this with the subsequent killing ( . one victim head fall off and a couple be skewer by the dreaded sword while hug ) . there a bizarre red herring set up feature the great buck flower chasing after a female victim ( . actually play by his real daughter verkina . ) inside a warehouse with a machete ( . he consider a suspect and but anyone in their right mind know that the film will ultimately end at the drive in ) . the truly horrible climax at the end punctuate a rather ineptly make film . attempt to leave open the killer identity and it only have you scratch your head . a plausible climax determine who between two obvious suspect might in fact be the real killer would have at least provide a satisfying conclusion to a rather poorly conceive horror film . the really oddball sequence where larry and mike be question orville in his home ( . with nude poster of model pin all over his living room wall ) really have to be see to be believe . see orville squirming and wallowing in misery over his sexual appetite ( . he even admit out loud to beat his meat while at the drive in and completely overwhelm in embarrassment . ) while the detective appear quite appal . a film like drive in massacre only prove that in the 70 almost anyone could make a movie .