The school year's almost over, and Madison, Park, and Lexington Hamilton are ready to trade in their Birkin bags for bikinis. But before vacation comes work, and the triplets have plenty of it. Cleopatra, the newest, hottest, and most expensive club in Manhattan, is opening - and it just happens to also be Hamilton Holdings' latest business venture. The girls must throw the party to end all parties. But this is one opening the sisters won't soon forget. Before the night ends, the body of a classmate is found with a bloody wound on the side of his head. At first glance, the case appears to be open-and-shut. But the girls smell trouble. They know the murderer is still out there, and they're willing to bet their sizable inheritance that the police won't be able to unravel the mystery. Murder is so out, but until this crime is solved, it's arrivederci Italia. And the Hamilton sisters simply won't accept that as an option.