After a group of criminals kidnap the ballerina daughter of a powerful underworld figure, they retreat to an isolated mansion, unaware that they're locked inside with no normal little girl.
https://www.imdb.com/title/tt27489557/reference
This cool looking movie stars 13 yo Alisha Weir, who we've previously seen playing Matilda in Roald Dahl's Matilda the Musical (2022). A little ballerina kidnapped for ransom turns out (to her kidnappers' horror) to be a vampire. The trailer shows them being hunted down one by one and trying to figure out how you kill an actual creature of the night. Garlic, crosses, holy water, a stake through the heart, sunlight - does any of it work? Guess we'll see.
For anyone who enjoys the evil little girl genre, this looks like it's going to be a lot of fun. I hope it comes out on streaming around the same time it launches in theaters!