Roseanna by Maj Sjöwall
My rating: 3 of 5 stars

A dead girl's body is dredged from Sweden's beautiful Lake Vättern. After an eternity, she is identified as Roseanna from Nebraska. But who did it and why? That's what Police Inspector Martin Beck wants to know. He must sort through about 100 people to find the killer. Unlike most mysteries, this one plods along like the way true life investigations probably do. When he finally zeros in on the killer, he has to trap him. Again, it takes time but he will get his man.

For those who like less plodding and more action, it may seem to drag. But trust me, the ending will speed up delightfully.