Based on the success of Castle's previous films, Columbia Pictures agreed to implement his concept for a "Fright Break." This entails a 45-second timer which overlays the film's climax as the heroine approached the house harboring a sadistic killer. A voice-over advised the audience of the time remaining in which they could leave the theater and receive a full refund if they were too frightened to see the remainder of the film. To ensure the more wily patrons did not simply stay for a second showing and leave during the finale, Castle had both numbered and different colored tickets printed for each show. About 1% of patrons still demanded refunds, and in response Castle decided to spotlight the people who chose to leave by creating a "Coward's Corner." Print ads promoting the film emphasized this "Fright Break" gimmick.