In the sleepy town of Dingley Falls, Connecticut, something funny is going on. Strange forces are pulling together the oddest of couples: a mild-mannered matron and a lascivious avant-garde poet; a sleek headmaster and a shy young curate; a hippie librarian and the wayward daughter of a local tycoon. What's more, mailboxes are being stuffed with shockingly violent hate letters, even as a mysterious ailment takes the lives of perfectly healthy people...