A woman wakes up every day dead tired. Turns out it's not just Seasonal Affective Disorder but that she's actually Doing Stuff every night... but what?

Engrossing, chilling and hard to put aside; it's mostly some of the ultra-short chapters (that's a trick that wears itself out quickly) and the abrupt ending that keep me from giving this more than a very strong 3. I like that it doesn't feel the need to explain everything, that it lets us fill in some details ourselves, but there's a point where that almost feels like a cop-out - which is interesting for a book about refusing to acknowledge trauma.