Key Zest food critic Hayley Snow and her groom, police detective Nathan Bransford, flock to Scotland with the rest of the Bransford clan for their long-delayed honeymoon. Nathan's sister Vera plans a tour of Scotland's iconic mystic places as research for a looming book project. The trip takes a deadly turn when a party guest falls ill, poisoned, and a separate stranger stumbles to his death from the famous Falkirk Wheel. The tension among Vera's friends is as thick as farmhouse cheese and Hayley fears her long-awaited honeymoon might end with another murder.