After dumping her cheating fiancé and canceling the wedding, Mallory Shepard can't bear another disaster. So when the former bride-to-be unexpectedly inherits Thistle Park, a ramshackle mansion in her ex's hometown of Port Quincy, it's a problem she can't afford—literally. It’s full of stray cats, peeling wallpaper, and nosy neighbors, and Mallory is dying to sell it off—once she finally fixes up both the place and her messy life. Then it turns out that Thistle Park has its charms. But the honeymoon phase is abruptly cut short when an unwanted visitor is found dead on the front lawn. Enlisting the help of her sister Rachel, Mallory vows to unveil the killer before she herself becomes married to the suspect list.