The Last House on the Left (1972) / Twitch of the Death Nerve [A Bay of Blood, Ecologia del Delitto (1971)] / Mark of the Devil [Hexen bis aufs Blut gequält (1970)] -Newspaper Ad

Oakland Tribune - September 26, 1973

Oof. Here is a triple-feature that I am certain qualified as something of an endurance test for the more squeamish and unsuspecting drive-in viewer. 

Wes Craven notorious Last House on the Left is a rough and unpleasant experience by design. Craven and producer Sean Cunningham (Friday the 13th) wanted to make an exploitation movie capable of shocking and disturbing even the most jaded viewer. Goal achieved.

Twitch of the Death Nerve is one of the earliest, if not the earliest, proto-slasher movies. One that many were quick to point out the similarities it had with both Friday the 13th and Friday the 13th Part 2. Being a Mario Bava film, it is the classiest looking of the trio.

Mark of the Devil might serve as one of the early examples of the sub-genre that came to be known as torture porn. No idea, really. I have not seen it.