While competing in a fishing tournament in a remote area of northern Minnesota, Virgil Flowers gets a call from Lucas Davenport to investigate a murder at a nearby resort, where a woman has been shot while kayaking. The resort is for women only, a place to relax, get fit, recover from plastic surgery, and commune with nature. Which makes things all the more complicated for Virgil, because as he begins investigating, he finds a web of connections between...

“We’re going to murder people who need to be murdered.” So begins a press release from a mysterious group known only as “The Five,” shortly after a vicious predator is murdered in San Francisco. The Five is made up of vigilante killers who are very bored…and very rich. They target the worst of society—rapists, murderers, and thieves—and then use their unlimited resources to offset the damage done by those who they’ve killed, donating...