The new American owner of an ancient English estate hires forty-year-old Frances Jellicoe to inventory the garden architecture. There, she meets a beautiful and attractive couple, Cara and Peter, who quickly become her best friends. They spend almost all their time together: dining, retrieving rare wines from the cellars, smoking, listening to music, and chatting about life. They stay up late, then retire to their rooms, where Frances peeks at her friends through a secret peephole she's accidentally discovered. It turns out things aren't quite as they tell her. Or at least not at all...