The Napa Valley is known for its picturesque vineyards, but when a prominent local professor is killed while on a tour, Ophelia and Poppy are called in to help. Something smells off, and it's not the aging reds in the cellars. Meanwhile, Nick has just moved across the country to start his new job, and the initial bumps in the long-distance relationship are starting to leave a sour taste in Poppy's mouth. Between the murder investigation, trying to keep her relationship alive, and the start of the Adam Otis trial, Poppy's keeping a lot of balls in the air. But the investigation quickly turns in a direction Poppy didn't expect. Will she solve the case, or is she about to find herself getting corked?