The Botterills are a fertile family. Mum, elder daughter and younger daughter Aurora are all imminently expecting. Aurora announces that her lot is quins. When a newspaper and the TV take her up, bringing in thousands of pounds, dismay turns to rapture. But Aurora must be married. The father is flown back from Hong Kong and they are married, the service turning to a race against time as all three women start labour pains at the same moment.