This movie follows a young rock band, half from England and half from the US, who all drop out of college and move to Los Angeles to try to become famous. The main character is Johnny Faust (Andy Biersack), who lives in Columbus, Ohio with his mom (Denise Richards) and his longtime girlfriend Gretchen (Olivia Culpo). He and his friends move to Los Angeles and meet up with the band members from England; together, they are The Relentless. They hold auditions for a bassist, and choose a girl named Lily (Jesse Sullivan). While leaving a liquor store, some of the band members encounter a homeless man (Bill Duke) who bears a name placard for "Reverend Jasper Williams". Before leaving, he tells them to rely on feeling more than perception. Moments later, the band is accosted by another old man twice before they agree to talk to him, sans Lily. The man (Malcolm McDowell) implies that he's the Devil and that he can make them huge stars if they trust him and perform a human sacrifice. As Lily had told Johnny that her ex-band member Damien (Drake Bell) raped her the night she left the band, and after Johnny has learned that his mom has breast cancer and can't afford treatment and Damien having insulted Johnny's mother, the band decides that Damien will be the victim. They lock him in a van, pour gasoline on it and set it aflame, but midway through Johnny has a change of heart and lets Damien out. Damien tries to climb an electrical fence but dies after being electrocuted.