I'd absolutely LOVE to throw a Demons-themed party. Basically just rent a place out, set up an "auditorium" to screen Demons and its sequel Demons II, and possibly the all but in name and tone The Church (directed by Michele Soavi, who played the masked man at the beginning and end of Demons, as well as Jerry in the in-universe horror movie). And then set up a "lobby" like the one from the Metropol theater (IRL, the Metropol was a decades-old theater that became a discotheque back in '77), though obviously with a totally-not-magical replica of the demon mask.
For the uninitiated, Demons starts off with a young woman receiving a ticket for a film screening. When she and her friend, convinced to blow off their university classes, arrive at the apparently-reopened Metropol along a group of random people. But soon, the scary events in the in-universe horror film, which follows a group of college students running afoul of a creepy mask found in Nostradamus' tomb, begin to flow into the real world. And as the bodies pile up, the increasingly few survivors seek to find an exit from the apparently magically sealed building while avoiding the increasingly many demons.
It should be noted that the demons here seem to follow a variation of zombie rules, in that they are driven to violence against the living and can turn others into demons via fluid-to-fluid contact.
I used to have it and the sequel on Blu-ray until upgrading to the Demons 1 & 2 UHD Limited Edition release.
Oh, and as I was typing this, I found an (unsuccessful) Kickstarter from a few years ago from Garetta Garetta (who played first victim Rosemary) and Lamberto Bava (who directed Demons) that sounded a lot like this. Sucks it didn't get funded.
