Stuntman Conrad E. Palmisano was buried alive for the film with only a garden hose for him to breathe air through. This was only tried once for this film and he would only do it one time, so they had to get it right the first and only time. It was a very dangerous stunt.
The location for Lakewood Manor was the College Inn in Qualicum Beach, British Columbia, Canada.
The actors were actually covered in real ants during their scenes.Suzanne Somers was convinced to do her scenes even though she was terrified of ants.
This is one of Brian Dennehy's twelve movie and TV appearances in 1977. He was considered one of the busiest actors in the late 1970s.
This film was only released as a TV movie in USA. In others countries like Mexico and Canada, it was actually screened as a feature film.