Nick and Meg are a long-married British couple revisiting Paris for the first time since their honeymoon in an attempt to rekindle their relationship. During a two-day escapade, diffident, wistful Nick and demanding, take-charge Meg careen from harmony to disharmony to resignation and back again as they take stock of half a lifetime of deep tenderness -- and even deeper regret. A surprise invitation from Nick's old friend Morgan, an amusingly boorish American academic with a fancy Parisian address, soon leads them to an unexpectedly hopeful vision of what their love and marriage might still become..