Kate Heron is a wealthy, charming widow who marries, much to the disapproval of friends and neighbours, a man ten years her junior: the attractive, feckless Dermot. Then comes the return of Kate's old friend Charles - intelligent, kind and now widowed, with his beautiful young daughter. Kate watches happily as their two families are drawn together, finding his presence reassuringly familiar, but slowly she becomes aware of subtle undercurrents that begin to disturb the calm surface of their friendship. Before long, even she cannot ignore the gathering storm . . .