The quiet life of schoolmaster Bill Mor and his wife Nan is disturbed when a young woman, Rain Carter, arrives at the school to paint the portrait of the headmaster. Mor, hoping to enter politics, becomes aware of new desires. A complex battle develops, involving love, guilt, magic, art, and political ambition. Mor's teenage children and their mother fight discreetly and ruthlessly against the invader. The Head, himself disenchanted, advises Mor to seize the girl and run. The final decision rests with Rain. Can a "great love" be purchased at too high a price?