When the awkward, neurotic and childlike Yair, a seller of rare books, sees a beautiful woman across the room at a class reunion he feels compelled to write to her. So begins a love affair of words between two married, middle-aged adults, dissatisfied with their lives, yearning for the connection that has always eluded them. "Be a knife for me," Yair writes to Miriam, "and I, I swear, will be a knife for you." As they peel back their inhibitions, their correspondence unfolds into an exchange of their most naked confessions in a novel that is as passionate as it is spellbinding.