There's a chill in the Wisconsin air and it's a shot in the arm --- or 'triple shot' in this case --- to Uncommon Grounds, the Brookhills coffeehouse owned by Maggy Thorsen and real estate maven Sarah Kingston. Two estate agents have died lately, and Sarah herself is under investigation for irregularities at her job. Then a stench begins to percolate through the coffeehouse, and soon it's clear that corpses --- like other bad things --- do indeed come in threes.