When Lou Winter picks up an old, dog-eared magazine in the dentist's waiting room and spots an article about clearing clutter, she little realises that it will change her life in ways she could not imagine. What begins as an earnest spring clean of unwanted household debris - a never-touched omelette maker here, a hideous collection of chintz ornaments there - soon spirals out of control. Before long Lou is hiring giant skips, in which to dump the copious amounts of junk she never knew she had. Lou's loved ones grow concerned - and not a little disgruntled. Where has all this energy come from, her husband Phil wonders? Why is clearing out cupboards suddenly more important than making his breakfast? And since when does quiet, meek, down-trodden Lou snap rude retorts at his sister, her mother, and even Phil himself? The truth is, the more skips Lou fills, the more rubbish she lets go off, the more light and air can get to those painful, closed-up places at the centre of her house: a lovingly prepared room for a baby she would never have; an empty space her best friend Deb once occupied; and a gaping wound left by her husband's affair three years ago. Even lovely Tom Broom, the man who delivers Lou's skips, starts to grow worried about his best customer. But Lou is a woman on a mission, and not even she knows where it will end ...