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.
Some movie posters for the film featured a long preamble that read: ''It was a small Louisiana town where people live and love and die and no one ever thought of locking their doors. ...except in the Monroe house.''