To the casual observer, the members of the Thursday Murder Club look harmless: senior citizens who pass the time at their retirement village researching police cold cases. After a local builder is murdered, the Club contrives to be part of the investigation, straining the patience of the lead detective. After all, what could an elderly psychiatrist, a retired nurse, an erstwhile labor organizer, and a woman who hints she is a former spy uncover that the police cannot? Plenty! An absorbing whodunit that is by turns wryly amusing and unexpectedly tender, this contemporary mystery kept me up late into the night.