The last film from Vestron Pictures. After filming was complete, Vestron was deadlocked between releasing either this film theatrically or Earth Girls Are Easy (1988). It chose this film, which was a flop, over "Earth Girls," which was also a flop.
In the first few minutes of the film there is a poster for the Ken Russell film "Vampire," which never made it beyond the script.
Purgatory, within Catholic doctrine, is a place or state of suffering inhabited by the souls of sinners who are expiating their sins before going to heaven.