Baltimore, 1910. Dr. Sarah Kennecott does not believe in ghosts. But when her dead sister appears in a dream and correctly forecasts a murder, Sarah must find the killer. At the center of the mystery is a spiritual medium with hidden motives and a stunning secret.

Haunted memories of an army massacre overseas push Jack Hardin near emotional collapse. The medium draws him in with a promise to contact his ghosts during a séance, an event that turns deadly.

The case tests their detective partnership as Sarah and Jack move from seedy saloons, to high society parlors, to confrontations with what might-or might not-be the supernatural. Everything, including their relationship and their lives, hinges on thwarting a killer who is deceptive, clever, and brutal.