Childhood friends Laurie and Rachel used to be inseparable - but their lives have taken very different paths since they picked up their A-level results together. Now thirty-five, they have all but fallen out of touch; glamorous single girl Laurie is based in London and dedicated to her career in fashion; Rachel seemingly living the family idyll in Yorkshire.

But when Rachel's mother-in-law needs urgent treatment in London, and disasters at work and in her love life mean Laurie needs to flee, a house swap falls into place. Soon gentle Rachel is far from the village bake sales, braving the city's mean streets while trying to keep her marriage and family together; while Laurie attempts to work an Aga, befriend the wary village locals - and forget the man who seems intent on breaking her heart. Will their relationships survive this test? And will they make it home for Christmas?