What do you need to be a saint these days? Ambition, determination and good PR. But what do you do if your mother's a saint and you just want to be human? Anna and Harriet share a burden: hellishly saintly mothers. So armed with a wicked sense of humour, they set out to paint the town red. And for a while life goes swimmingly. But when they tread on one toe too many, they find that they have only their worst instincts - and each other - to rely on.