Really disgusting scene in the first chapter (not gruesome just gross) that had nothing to do with any investigation: The detective wakes up with a morning erection and tries to get some from his wife but she fakes being sleep and moves away from him. He gets closer and she continues moving but then falls from the bed. Then she puts her hand inside her underwear and brings up a pad full of blood. At the same time their son shows up in the bedroom (I guess they sleep with the bedroom door open?) and watches the whole tableau with horrified eyes.
I mean really...was there any need for that? I feel it was there for shock's sake. It seems to me that these Nordic writers feel compelled to prove to the world that they can be nasty too.