Studio 666 (2022)

In 1993 Encino, Skye Willow, drummer of the heavy metal band Dream Widow, is crawling along the floor with a broken leg, followed closely by band's frontman, Greg Nole, who is holding a hammer. Skye sees the body of another band member, who has had his jaw broken by Greg, before Greg drives the hammer through her forehead and repeatedly hits her head with it, crushing her skull. Greg then hangs himself from a window.

In 2019, the Foo Fighters—Dave Grohl, Taylor Hawkins, Rami Jaffee, Nate Mendel, Chris Shiflett, and Pat Smear—are pressured by their manager Jeremy Shill to overcome their writer's block and record a new album. The group move into the mansion, where Grohl becomes fascinated with the house as a source of inspiration. One of their tech helps, Krug, is electrocuted by a wire and the band decides to dedicate their album to him.

Grohl finds a basement containing satanic objects and is possessed by Nole's demonic soul after listening to a demo tape. Under the demon's control, Grohl forces the band to continue production on the album. Later, a delivery man named Darren, who had earlier tried to give Grohl a demo tape, is decapitated outside the manor by an unknown figure with hedge clippers. The next day, as Shiflett is cooking on the grill, the same figure pushes his face onto it. Shiflett attempts to escape but he has his head smashed with the grill cover and is stabbed repeatedly in the neck, before the figure is revealed to be Grohl.

The band later finds Darren's corpse, but Grohl convinces them not to call the police and takes their phones. After watching Grohl eating Shiflett's remains, the band soon learn of the mansion's backstory and Grohl's possession with the help of a neighbor, Samantha. To exorcise Grohl, they need to find a book needed to free him of the possession. As Samantha and Jaffee have sex, they are both killed when Grohl sneaks under the bed and drives a chainsaw through their heads, before cutting them in half. Hawkins is pressured by Grohl to finish the song while Mendel and Smear retrieve the book from the basement. Hawkins finishes the song and is partially decapitated by Grohl with a cymbal.

Mendel and Smear free Grohl from the possession, and the souls of the Dream Widow band members send the demon to hell. However, Jeremy and real estate developer Barb Weems ambush the remaining members, revealing that they planned the whole thing. While Smear is fixing a car from underneath, Mendel is stabbed in the eye, causing him to accidentally hit the gas, which runs over Smear's head and runs over Barb. As Mendel gets out of the car to help Barb, she stabs him through the chin and dies alongside him. Grohl battles Jeremy only to back down in horror when Jeremy tells him of the album's success and the start of his solo career. One year later, Grohl, the only Foo Fighter survivor, prepares to perform a solo concert, with marks of possession around his eyes.