Izzy McHale wants her new Trendy Tails Pet Boutique in Merryville, Minnesota, to be the height of canine couture and feline fashions. Love is in the air, and Izzy is hard at work coordinating two special weddings at Trendy Tails. First, Izzy's friend and mentor, Ingrid, will be tying the knot with her old flame. And a week later, Izzy will host "pupptials" for two lovable dogs. But even with the hullabaloo, the Trendy Tails crew is intrigued by Daniel, an enigmatic writer boarding above the shop who's caught the attention of Izzy's zany aunt Dolly, who gossips like most people breathe. Unfortunately, it's Daniel who stops breathing when he drops dead at the altar on Ingrid's wedding day. Then Dolly is found at the scene with the murder weapon, and it's up to Izzy, her Trendy Tails pals, and her scrappy pets, Packer and Jinx, to find a killer before the two affianced doggies bark down the aisle.