NOW A MAJOR FILM STARRING MICHELLE PFEIFFER AND LUCAS HEDGES A tragedy of manners from the Man Booker-shortlisted author of The Sisters Brothers ''My favourite book of his yet'' Maria Semple, author of Where''d You Go, Bernadette ''Pure joy'' Mail on Sunday ''Buoyantly insane'' New Yorker Frances Price is in dire straits. Scandals swirl around the recently widowed New York socialite, and her adult-aged, toddler-brained son Malcolm is no help. Cutting their losses, they grab their cat, Small Frank, and head for the exit. Paris becomes the backdrop for a giddy drive to self-destruction, helped along by a cast of singularly curious characters. Brimming with pathos, warmth and wit, French Exit is a riotous send-up of high society and a moving story of mothers and sons.