Dark. Creepy. Maybe Read My Sister's Husband First. This is one of those dark, creepy books where *most* of the worst stuff (though not all) is "off screen", so even though there are mentions of animal abuse, rape, sexual assault, and more, for the most part we never "see" any of this happening = and more often than not, it is merely mentioned, rather than "showing" anything at all about the abuse at hand. (Though there are points where *slightly* more is shown, to be clear - it is simply that the actual abuse is never shown.)
So for those who can handle seeing such primarily "off screen" abuse in a twisty thriller all about family relationships... this one is done quite well, but truly works *best* if its predecessor, My Sister's Husband, is fresh in your mind. (Vs my having read 869 books between them - seriously.) The events pick up after the events of the first book, with most of the relationships between the characters already well established from that book. (But with enough recap that it is possible to follow along here, there's just a lot to learn.) Told from just three perspectives (rather than each character's or a single narrator's), we get a good sense of what is going on in these complex and complicated relationships, along with a lot of backstory for our new character for this book.
Still, for those looking for dark and creepy yet not necessarily supernatural reads as we go into this fall/ Halloween season, both of these books are quite good for exactly that kind of mood.
Very much recommended.