Company Credits
Production Companies
Distributors
- Bordeaux Films International Ltd. (1979) (UK) (theatrical) (as "Red Rings of Fear")
- Wizard Video (1985) (USA) (VHS)
- Wizard Video (1985) (USA) (video) (Betamax)
- UFA Video (1986) (West Germany) (VHS)
- Tempo Music International (2005) (Australia) (DVD)
- Eyecatcher Movies (2008) (Germany) (DVD) (as "Orgie des Todes")
- Italian International Film (1978) (Italy) (theatrical)
- Manuel Salvador (1980) (Spain) (theatrical)
- Delta Home Video (1987) (Australia) (VHS) (as "Virgin Terror")
- Lettuce Entertain You (VHS)
- Mill Creek Entertainment (2009) (USA) (DVD) (as "Trauma")
- Universum Film (UFA) (all media)
- Video Film Promotions (VFP) (UK) (VHS) (as "Rings of Fear")
