When Poppy and Aunt Ginny agreed to host a Wine and Cheese Happy Hour for a tour group at their Butterfly House Bed and Breakfast on the Jersey Shore, they never anticipated such a sour bunch. Grumpy guest Vince Baker should be in a better mood--he's filthy rich and on his honeymoon with his much younger wife Sunny, who seems to dote on him almost as much as her high-spirited teacup Pomeranian, Tammy Faye Baker.

But the honeymoon is over when Vince drops dead the next day touring the Laughing Gull Winery. Turns out he's been poisoned, and it seems like everybody on the tour is hiding something. Now Poppy has to put her gluten-free baking on the back burner and bottle up her feelings for the two men in her life while she charges after a bitter killer with a lethal case of sour grapes...