Serena Jones is an FBI Special Agent for the Art Crimes Division. She arrives on Martha's Vineyard, Massachusetts with her parents and her 70-year-old, eccentric, amateur sleuth Aunt Martha, for a special engagement party for her Uncle Jack. When Jack does not pick them up at the ferry dock, they take a taxi to his home and discover he in a suspicious fall. Serena believes it was foul play and then discovers someone does not want her investigating and tries to run she and her father over. Soon trying to solve a murder that is so personal and finds out uncle Jack had previously placed a call to the FBI about antique smuggling.