Heidi Bradshaw is wealthy, beautiful, and well connected - and she needs Spenser's help. In a most unlikely request, Heidi, a notorious gold digger recently separated from her latest husband, recruits the Boston P.I. to accompany her to her private island, Tashtego. The reason? To attend her daughter's wedding as a sort of stand-in husband and protector. Spenser consents, but only after it is established that his beloved Susan Silverman will also be in attendance. It should be a straightforward job for Spenser: show up for appearances, have some drinks, and spend some quality time with Susan. But when Spenser's old nemesis Rugar - the Gray Man - arrives, Spenser realizes that something is amiss. A storm, a kidnapping, and murder tear apart what should be a joyous occasion, and Rugar is seemingly at the center of it all. The only thing is that the sloppy kidnapping is not Rugar's style - as Spenser knows from past encounters. With six dead bodies and more questions than he can process, Spenser begins a search for answers - and the Gray Man.