Between tending to the whims of her seven-year-old and the demands of her boss, Viv barely gets a moment to herself. It’s not quite the life she wanted, but she hasn’t run screaming for the hills yet.
But then Viv’s husband Andy makes his mid-life crisis her problem. He’s having an affair with his (infuriatingly age-appropriate) colleague, a woman who – unlike Viv – doesn’t put on weight when she so much as glances at a cream cake.