As Kate Hamilton and her new husband, DI Tom Mallory, honeymoon in Devon, a local history museum asks them to trace the provenance of a bloodstained dress said to belong to a Victorian lacemaker accused of murder. If genuine, the dress and its puzzling connections to a nineteenth-century Romani family who camped on Dartmoor will be the centerpiece of a new historic-crimes exhibit—exactly Kate's kind of mystery. But matters turn deadly when a shot is fired during a fundraising gala, injuring the man who donated the dress. The injured donor, Gideon Littlejohn, is a cyber-security expert who lives and dresses as a Victorian gentleman, but everyone believes the real target of the attack to be another attendee—a controversial politician intent on rooting out local corruption. This belief is overturned when Gideon is found dead in a pool of blood. But then the politician receives a death threat. Who was the real target? Who would want to kill both a man with an obsession for history and a tough-on-crime politician? When asked to assist in the investigation, Kate races to discover the truth as it becomes clear the killer isn't going to come quietly.