One of the last films to be released by American International Pictures (AIP).
While filming in the Shreveport, Louisiana area, the Louisiana State Police assigned TFC James Pierrelee to assist with traffic for several days.
Actor Vic Morrow played dual roles in this movie portraying the characters of both Jake Rudd and Todd Monroe.
This horror movie ''relocates 'The Old Dark House' on 'Bonnie and Clyde' terrain'' according to a review at the 'Time Out' website.
This film's opening prologue states: "This motion picture is based on a true story. All names, places, and dates have been changed. Therefore any similarities to the following events in this film are purely coincidental."