The small-town prudes of Lynnfield are up in arms over 'The Sinner,' a sexy best-seller. They little suspect that author 'Caroline Adams' is really Theodora Lynn, scion of the town's leading family. Michael Grant, devil-may-care book jacket illustrator, penetrates Theodora's incognito and sets out to 'free her' from Lynnfield against her will. But Michael has a secret too, and gets a taste of his own medicine.