A British comedy-drama television series that follows three couples—Adam Williams and Rachel Bradley (James Nesbitt and Helen Baxendale), a couple in a fledgling relationship; Pete and Jenny Gifford (John Thomson and Fay Ripley), a married couple with a new-born son; Karen and David Marsden (Hermione Norris and Robert Bathurst), a married couple with an infant son and later twin baby girls—as they cope with marriage, children and infidelity.