Miles Adler-Rich, helped by his friend Hector, spies and listens in on his separating parents. Both boys are in thrall to Miles's unsuspecting mother, Irene, who is "pretty for a mathematician." They rifle through her dresser drawers and strip-mine her computer diary, finding that all leads pull them straight into her bedroom, and into questions about a stranger from Washington, D.C., who weaves in and out of their lives. Their amateur detective work soon takes them to the far reaches of adult privacy.