Solving murders was not part of Sean Tanner's retirement plan.

Former homicide detective and recently widowed Sean Tanner has settled into Spartina Island's private retirement community, hoping to find solace after his wife's death in their chosen paradise. He soon finds himself drawn into the Mudflats Murder Club, an enthusiastic group of retired detectives, prosecutors, and forensic experts who are engrossed in solving the 38-year-old unsolved murder of Theresa Goldberg.

But the quiet of the community is shattered when Sean's neighbor, Nancy Russo, is found dead in her home. Ignited by the crime, the club jumps into the fray, much to the annoyance of Sergeant Charlotte "Charlie" Nash, the lead detective spearheading the murder investigation. When Sean and his cohorts uncover a shocking connection between Nancy's murder and their long-standing cold case, everything they thought they knew goes up in flames.

Amidst rising tensions and thrilling discoveries, Sean and Charlie must confront their doubts about each other—and acknowledge their reliance on the team—to outsmart a killer who's closer than they ever imagined.

From former detective and current cold case team member Brian Thiem comes The Mudflats Murder Club. Perfect for fans of Richard Osman and Only Murders in the Building.