I read this book about 13-Aug-2017. This is the first time I've read this book. The book is copyright 2015. This note was last modified Tuesday, 10-Oct-2017 16:38:36 PDT.
This is book 6 of the "Mac McRyan" series.
This note contains spoilers for the book.
On vacation in St. Paul, Mac gets drawn into an investigation of some murders, including one that his ex-wife is accused of.
This ends up connecting to events in Washington and in South Dakota—high politics and oil-industry money.
Sally isn't around much, though she is urging him to be careful from a distance (and his police friends are on her side). She does approve his trying to clear his ex-wife; Mac has a big enough chip on his shoulder that clearing it off seems beneficial to her, and this should do it she thinks.