While working in the Chester household as a governess, the innocent Clara becomes sexually involved with Herbert Chester, her employer. Then, when the beautiful Catherine, Herbert's sister-in-law and secret lover, comes to stay at the house, Catherine introduces Clara into the pleasures of being with a woman. On learning how the women are enjoying each other, Herbert encourages them into a threesome with him. This spurs jealousy in Catherine, however, and Clara is dismissed.

Now sexually awakened and excited by life in London, Clara has no desire to return to work as a governess and contemplates what form of employment best suits her ambitions. Her friend, Anna Quinlan, suggests the ideal solution. Anna is Madame Q and runs The Nunnery, an exclusive brothel catering only to the most select clientele. Tempted by a generous salary, room, board, freedom and independence, will Clara accept and become one of Madame Q's ladies of pleasure?