Sam Bell (Hugh Laurie) and his wife, Lucy (Joely Richardson), are the perfect couple, complete with perfect careers and perfect lives. But one thing is missing: The Bells want a baby -- and they can't seem to conceive one despite their best efforts. Doctors advise in-vitro; a friend advises creativity; and the couple soon finds their love put to the toughest of tests. Emma Thompson and Rowan Atkinson make cameo appearances.