Check out the trailer:
Hogwarts this isn't (though perhaps we see shades of 1986's
Witchboard?).
You're Next,
The Guest, and the recent
Blair Witch reboot. According to the helmer, he was inspired not only by classic '70s and '80s slasher movies (1974's
Black Christmas and 1982's
The House on Sorority Row come to mind) and Italian Giallo films (1964's
Blood and Black Lace and 1971's
Black Belly of the Tarantula perhaps), but also by the murder mystery genre that Agatha Christie made famous and which Rian Johnson revived to great effect and boffo box office with 2019's
Knives Out.