Decker leads the investigation along with a brash, young, too-full-of himself, Harvard-educated partner named Tyler McAdams who's taken a temporary job with the Greenbury Police Department. Decker and McAdams discover that the murders seem to be associated with art thefts, perhaps of some very valuable works such as Russian icons, a historic Russian 'amber room', Nazi-confiscated art, panels from valuable reference books, and so on.
Rina and Decker's old partner Oliver help with the investigation; everyone puts heir heads together to make sense of the clues, twists, and numerous suspects. Even McAdams - who starts out as a rather irritating snob - mellows out and makes himself useful. Rina also fosters camaraderie among the disparate personalities by organizing a delicious kosher dinner and serving tasty sandwiches and snacks as needed.
I enjoyed visiting with familiar characters and I liked the plot until the climax. The unmasking of the killer and the reasons for the crimes are anti-climactic and, in fact, don't make a lot of sense. It feels like Faye Kellmerman ran out of steam and just hurriedly wrapped up the book. Up to then, though, it's a pretty good story. I can't whole heartedly recommend the book but fans of the series will probably like it okay.