From the attic of Lyntons, a dilapidated English country mansion, Frances Jellico sees them--Cara first: dark and beautiful, then Peter: striking and serious. The couple is spending the summer of 1969 in the rooms below hers while Frances is researching the architecture in the surrounding gardens. But she's distracted. Beneath a floorboard in her bathroom, she finds a peephole that gives her access to her neighbors' private lives.