Patricia Harper has been killed by an espresso machine hot-wired to electrocute its owner - and in Uncommon Grounds, her very own gourmet coffee store, on opening day. Maggy Thorsen, displaced PR executive turned coffee maven, wants to know who killed her partner and put the future of Uncommon Grounds in jeopardy. Maggy desperately needs the store to succeed, so she joins forces with Sarah Kingstown, Patricia's closest friend, to investigate her killing.