Sydney Riley is busier than ever organizing parties, weddings, and even a float for Provincetown's Carnival Parade. When her boyfriend's sister, Karen--who happens to be Boston's Police Commissioner--arrives for an unexpected visit, things don't add up. It's totally out of character for Karen to take a vacation, never mind at high season in a tiny summer resort packed with tens of thousands of scantily-clad revelers. Sydney suspects an ulterior...