What I Would Rather Not Think About by Jente Posthuma (tr. Sarah Timmer Harvey)- Mild Spoilers 

It sounds intriguing, quirky and sad.

Great review Bob! I really enjoyed this one as well and am thankful for the Booker Prize putting it on my radar. A "quiet sucker punch" is a great way to describe this novel lol

I have similart feelings about this book: the premise, the perspective of the sister and the way that it's written. I love the style of the writter

I'm still waiting for this book to come in from the library. Have you read In Defence of the Act from the Women's Prize longlist? It deals with the same topic and I really loved it.