True-crime author, Carly, and her husband Kevin take a much-needed vacation at Carly’s family’s historic mansion on Crawford Island. Kevin thinks the vacation will be a chance for them to reconnect, but Carly plans to research the mysterious unsolved murder of Dina Crawford, the subject of her next book. As she starts to unravel the truth, Carly begins to feel like she might be the next victim on this storied island.