On the surface, Marian Keyes' latest book chronicling the Walsh family of Dublin might seem a departure from the sort of frivolous "Sex in the City" fare which has made her an international best-seller. All things seem perfect for Anna Walsh. She has a plum public relations job for a cosmetics company in Manhattan. Naturally, she has a perfect husband, Aidan, as well. So when Anna wakes up in her family's Dublin living room suffering from multiple injuries, and with no memory of what happened, it might seem like Keyes is setting Anna up for some sort of twisted collapse from perfection to misery. In fact, even when she returns to the Big Apple, it seems Anna's seemingly perfect husband no longer wants to speak with her. But relax, lovers of Marian Keyes. While her new book, "Anybody Out There?," does indeed dabble in some dark material, it also contains much of the charm and hilarity that have become Keyes' trademark. Anybody Out There? is propelled by the vision which Keyes puts in the reader's head of lovely Anna all smashed up, back home in Dublin with her quite eccentric mother trying to nurse her back to health When Anna is finally able to get healthy again, she slowly begins to formulate a memory of how she ended up so badly injured: a car accident and the scent of lilacs play prominent roles as the story unfolds. In the end, this is another score for Keyes, who continues to balance life's dark and light tones in her works. Extra credit should also go to Keyes for managing to depict both Dublin and New York City in such a comical, yet true-to-life fashion. ($24.95 / 464 pages / William Morrow)