A frontier town set was destroyed in the "Witch" fire of San Diego County. This massive fire burned most of the back country of San Diego County and threatened the town of Julian, California burning hundreds of significant buildings and homes. Whitehorse Ranch in Landers, CA volunteered their location to support the completion of the film
A passing motorist in the town of Ramona, California witnessed the filming of the night sequence where actress Wendy Wiltsey was fleeing in her nightgown from the serial killer. The motorist heard gunshots and called 911. She failed to see the entire cast, crew, lights, cameras and film trucks at the scene. The City Police responded, only to be embarrassed that they had not read their own posted bulletin explaining a movie was being filmed. A police dispatcher's error.