I have to say this movie is not for those who want some dumb fun. It's a very serious tale of envy, despair, superstition, and ruin; that takes itself seriously.
The acting is superb, and plenty is said with dialogue that is trimmed down of anything unnecessary and it lacks exposition dumps, thankfully.
For the budget this movie had, I was shocked at how good it looked. The scenography will surely make you forget you're watching a non-Hollywood budget movie and the music is noticeable yet subtle to not take away from the experience but add to it.
The acting is simply amazing so that some actors who only have a line or not even a line, say more with that than some actors say with a book-worth of lines. One of the main actors, Andrew Howard, looks so much like a Serbian man that it comes out as a shock he's actually Welsh. The other main actor, Philip Brodie, wonderfully portrays the "prodigal son returns" role, and the rest of the cast well... if you've ever been to a Balkan village, you'd sworn you've seen these people there by how good they portray their roles.
Lastly, the story itself. The writer borrows enough from Slavic folklore and real life to intrigue you but leaves enough as a mystery for you to understand and unravel as you go along. There are "plot twists" but not in the typical sense you might be used to, rather it clicks in your mind as you watch ''til the end.
The only flaw of this movie, if I can even call it a flaw, would be that it's marketed as a typical horror movie. No, it's not a horror in the sense of jumpscares, CGI monsters and gore, it's a horror in a more personal sense, and I would rather call this movie a family horror-drama.