Not Tonight Darling runs the gamut from soft-core silliness to turgid melodrama. Luan Peters plays a beautiful suburbanite, tired of her husband and her empty lifestyle. Businessman Vincent Ball enters Luan's life, armed with little more than a smooth line. Luan falls in lust with Ball-the first step towards her descent into the world of crime. The moral (?) of Not Tonight Darling seems to be "get a hobby and stay with hubby".