The Devil"s Music is the first film to document the strange story of notorious shock-rocker Erika Spawn who was briefly the most infamous woman in the world after her music had been linked by the tabloid press to real-life murders and atrocities. Through recently obtained footage, we see how Erika became attached to a young fan, Stef Regan, who accompanied her on the final music tour with horrifying and bloody consequences. We also witness how Erika became obsessed with former boy-band singer Robin Harris, an obsession that led to a series of violent incidents and bizarre accusations. With unprecedented access to all of those who were involved, this film cuts through the rumors and media spin to uncover the disturbing truth behind a creepy, violent and still controversial chapter in pop music.