It's a Christmas horror comedy (emphasis on comedy) with lots of violence and vulgarity. Although the basic premise is most akin to Gremlins, the over-the-top comedic gore is more reminiscent of Violent Night. Performances are generally mediocre and the movie never quite manages the gleeful chaotic mayhem of Gremlins or Krampus; but it is nevertheless surprisingly enjoyable. It hits the right notes in depicting the rampaging antagonists. The blend of cloying holiday reconciliation with inventive bloodshed is true to the subgenre. It seems intended to be silly rather than horrifying and if that's what you expect you'll probably have fun with it.
