Rock 'n' Roll Nightmare (also known as The Edge of Hell) is a 1987 direct-to-video Canadian horror film directed by John Fasano, and stars heavy metal musician Jon Mikl Thor, Jillian Peri, and Teresa Simpson.[ Recording some new music in an isolated farmhouse, the band Triton gets more than they bargained for when something horrifying stirs in the darkness. Eternal evil haunts this place and the band members start turning into demons from Hell itself! After a day of making music – and making love – this band is starting to break up… one by one… limb by limb. The bands lead singer, John (Jon-Mikl Thor) Triton, holds the key to defeating this horror once and for all – a secret that culminates in a battle between good and evil! Triton versus the Devil himself!