Doctors Benedict Crane and Thomas Allard are Victorian London’s foremost experts on curing sexual frigidity in women, and their intensely humiliating but highly effective techniques have helped them build a thriving practice. But when they embark on a new course of scientific inquiry—a study of possible treatments for wanton female behavior—Benedict and Thomas must seek out a suitable subject for their research.

Confined to an institution and incorrectly diagnosed with acute nymphomania after being falsely accused of promiscuity by a powerful judge, Lucy Priven has no idea what to expect when she is removed from the asylum by two handsome doctors. After taking Lucy as their legal ward, Benedict and Thomas soon demonstrate both their concern for her health and their willingness to be the strict caretakers she needs.

To their surprise, however, it quickly becomes apparent that Lucy has been misdiagnosed. She is no nymphomaniac, but that doesn't mean she can't respond to the excitement that is awakened by the rapt attention of her two guardian doctors. When it becomes obvious that her need for them is just as intense as theirs for her, will the doctors be prepared to give Lucy fully the kind of prescription she craves?