I'm actually about 3/4 of the way through this by the time I got around to updating here. It is an incredible book but oh god it needs so many content warnings especially right now.

Obvious general things: gore, violence, intense macabre, supernatural death cult, lots of abuse including sexual, including intra-family, including of children. More specific: a major strand of it is the author wrestling with the trauma of Argentina's era of military dictatorships, and the role of colonialism in them, by way of a supernatural horror story.

One thing it doesn't have, at least so far, is jump scares. The plot unfolds slowly and every new horror revealed is such a clear consequence of or context to what happened before that it's never terribly surprising. Which in itself feels like a stunningly effective allegory for a lot of political horror.

I'm very glad to be reading this, but not sure I can recommend it for right now, especially to people in the US. I am also very much wishing I'd got around to reading it last year.