With a struggling second-hand car dealership in South London, Juliet and Andy Wyevale don't have it easy. And it's not just the business that needs a jump-start - their marriage could do with an overhaul too. Andy's always too busy with work to help with the kids, and what's more, he's losing his hair and developing a paunch. Although Juliet loves her husband dearly, she knows the passion leaked out of their marriage a while ago. So when Andy hires a new mechanic, who bears more than a passing resemblance to Antonio Banderas and who has 'a thing' for older women, the sparks begin to fly. Will Juliet throw it all away for a man who looks great in an oily vest and tight jeans? Or will she realise that her family needs her now more than ever?