Her name was Sabina Spielrein.
A brilliant young “hysteric,” she is Carl Jung’s first patient, and eventual colleague, as he seeks to refine the “talking cure” method of treatment proposed by his adopted mentor, Sigmund Freud. Traditional notions are shattered when Sabina begins to blaze her own trail and a forbidden journey into repressed passions unfolds as patient and doctor cross the ultimate boundary, becoming lovers. Under the creeping shadow of two World Wars, all three are drawn into a complex web of rivalries and dark desires that will eventually give birth to modern psychoanalysis – as well as its first great schism.