Picture Salmon Bay: an isolated, run-down northern California village, home to an idle fleet of fishing boats, a deserted amusement park, and a handful of secretive, even hostile residents. When private investigator Sharon McCone arrives in search of one of the town's wayward daughters, the train leads to the thriving resort of Port San Marco. McCone believes that the missing woman, a former social worker named Jane Anthony, was involved in the suspicious deaths of three terminally ill patients at an exclusive hospice.