If you could try out a different life, would you take the chance? Identical twins Sorcha and Sara occupy opposite sides of the moral fence. Sorcha has always been the apple of her Irish Catholic father's eye, while Sara looks up to their free-living Swedish Mamma. But when devoutly Catholic Sorcha accidentally steps into the life of her sister - and into the arms of her lover John - she realises just how much she might enjoy being sex-beast Sara. What happens to Sorcha, when her guilt catches up with her? Will Sara learn anything from her sister's devotion to her lover?