Folk horror with kearifan lokal. It explores the universal theme of light vs dark, minus the in-your-face religious subtext. What it lacks in dialogue strength, it makes up for in the technical aspects (sound prod., unsettling imageries, brilliant choice of location). The director’s effort in world building really shines through in this film, despite several minor discrepancies in the plot. Definitely one of the best anxiety-inducing flick I’ve ever watched.
Sidenote: some scenes in this film may remind you of Robert Egger’s The Vvitch, which I’d reckon is a homage rather than a cheap imitation.