Somewhere in the universe, there must exist a Venn diagram that shows the overlap in fans of horror, fans of the legendary band Foo Fighters, and fans of classic Scooby-Doo. If you land in the sweet spot, then STUDIO 666 is right up your alley. A horror-comedy, STUDIO 666 is the goofball attempt at horror when frontman Dave Grohl and crew decide to make a scary movie with video director BJ McDonnell and a handful of their closest friends. It’s fun, it’s bloody, and it rocks, but it’s not for everyone. This paranormal rocker gore-fest runs Everlong with repetitive scenes, protracted conclusions and silly hijinks that wear thin over its 1 hour and 45-minute runtime.

The film begins with a cold open in 1993 at an undisclosed hillside Hollywood mansion. A murder takes place during a recording session and the place remains empty through the years. Enter the Foo Fighters, Dave Grohl, Taylor Hawkin, Pat Smear, Nate Mendel, Rami Jaffee, and Chris Shiflett. Sitting in a conference room, the band members struggle to land on a concept for their 10th album. Their nefarious manager (Jeff Garlin) strolls by and demands commercial success from them by offering the perfect place to record. In swoops the calculating Realtor (Leslie Grossman) and the plans are made. Foo Fighters will record their 10th album in a storied Hollywood Hills mansion that is rumored to be haunted. Rumor?

After discovering a rather satanic setup in the basement, Grohl becomes possessed with the desire to compose a song featuring the note L Sharp. Confused, the other band members literally play along and stay at the mansion in hopes of finishing and leaving as soon as possible. Could Grohl be on course to unlock the powers of Hell as he drives his bandmates to finish a song that never ends?

Let’s start with the bad. The film is far too long. After the third scene in which Grohl tells the band to stop mid-jam, I was done. Grohl’s performance is, by far, the strongest in the band, and it’s a good thing he was tapped as the lead here. Yet, despite the multiple in-jokes and funny asides, we do, eventually, want to get scared and grossed out, at least a little. Jenna Ortega, Will Forte, and Whitney Cummings all pop in to fortify the movie with a bit of movie star gravitas, but it can’t fix the lumpy editing and rough story beats that hamper what could have been a fun splatterfest.

Now for the good. McDonnell makes sure to keep the mood consistent even if the jokes and horror aren’t. This is full-on camp horror slasher goodness with some wonderful practical effects that will make the gorehounds squeal with delight. I just wish that the story beats were distilled a bit. Despite that all, ask yourself the following questions; Do I like Horror? Do I like Foo Foghters? Do I like Horror Comedy? If the answer to all of those questions is “yes” then STUDIO 666 is for you.