Nettie Sweeney has a dad, three big sisters, a farm full of cows and a cat called Mittens. But it's not enough. She longs for a mother. One with a gentle touch and sparkles in her eyes. Instead, she has Aunty Edith with slappy hands, a sharp tongue and the disturbing belief that peas are proper food.

When Dad marries Alice, all Nettie's dreams come true. The Sweeney home overflows with laughter, love and, in time, a baby brother. Billy. The light of Nettie's life. Then tragedy strikes. The Sweeney family crumbles. Nettie tries to make things right, but has she made everything so much worse?