While wearing an engagement ring big enough to signal the space station in this updated sixth Blackbird mystery, impoverished Philadelphia heiress Nora Blackbird has finally agreed to marry Mick Abruzzo, maybe New Jersey's most notorious mob boss. But the Blackbird sisters find themselves distracted from wedding plans by the disappearance of former Hollywood starlet Sweet Penny Devine. It's polo players, a handsome foodie, some animal rights activists, and one very determined gold digger who seem to be connected to Penny's demise. Will Nora's high society murder be solved before the wedding bells ring? Or will mobsters break up the party? It's more well-dressed fun among the blue-bloods for Nora Blackbird.