The Emperor's Children by Claire Messud

Danielle, Marina, Julius are all friends from college living in New York and looking for love and fulfilling jobs at the age of 30. Marina's family - her father Murray, her mother, Annabel, and cousin, Frederick aka "Bootie" all factor into the plot.  It takes a long time to get to a point in the book where moral dilemmas present themselves. Danielle begins an affair with Marina's father, Murray the erudite writer/speaker, Bootie becomes Murray's secretary and writes a magazine piece to uncover the "real" Murray. Marina marries an Australian who is about to launch a hip magazine. Julius moves in with his perfect gay lover.

 9/11 in NYC blows apart their world and forces each of the thirtysomethings to address the pathes they have launched on with some poor choices to take action in ways that they had not anticipated including nicely unwrapped up endings such as the disappearance of Bootie and Luddy Marina's new husband leaving for England. While I would give this book a "B" overall for the self absorbed plot of 30 year old mostly spoiled brats...the ending was worth the slog through.