The Master Key

Rating: 4.5 ⭐️

I had no idea what this book was about. And I'm glad I bought it without knowing too much of the story because otherwise I'd have felt confused.
This is the story about a group of women who live in a building and have secrets. That premise doesn't sound very interesting, but once you start reading the book, it's so engrossing that you can't stop reading. The women's lives are like the pieces of a puzzle: they seem to be interesting but not so relevant, until every piece fits together and the big picture is revealed.
This book has no detectives or even ‘proper' villains: just a group of people with dangerous secrets.

Didn't, like, rock my world, but this Japanese mystery novel from 1962 had a cool setting and some great plot moments. Just felt a bit needlessly convoluted.