Rough Country (Virgil Flowers Series #3) by John Sandford

The murder of a successful advertising executive leads Detective Virgil Flowers to the unlikely scene of the crime: a peaceful and bucolic wooded resort with as many suspects as it has secrets...

While competing in a fishing tournament in a remote area of northern Minnesota, Virgil Flowers receives a call from Lucas Davenport to investigate a brutal murder at a nearby resort for women only. As Virgil begins investigating, he finds a web of connections between the people at the resort, the victim, and some local women, notably a talented and popular country singer. The more Virgil digs, the more he discovers the arrows of suspicion point in many directions, encompassing a multitude of motivations: jealousy, blackmail, greed, anger, and fear.

Then Virgil discovers something that sends his investigation reeling. This is not the first murder connected to the Eagle Nest Lodge. Nor will it be the last...