A psychotic mechanic entertains himself by torturing and raping women...but when he is later invited to a party he gets his comeupance.

Sick, unnecessary, glorified rape-revenge trash which deservedly spent many years on the Video Nasties list, and the UK DVD edition is cut by an incredible 13 minutes! (that translates to 14% of the whole movie!!)
I don't know if it's just me, but David Hess seems to like associating himself with this kind of movie. Coincidence? Or is it that he is just a sick bastard?