Ernestine is cursed. At least, that is what some whisper about her. Others say she is possessed by the devil.

France 1815; Ernestine Emilie Prondre de Guermantes should have had it all. The French Revolution had ended. Her family not only survived but maintained their chateau and their fortunes as well.

However, she is plagued by a mysterious malady unlike any recorded illness. Occasionally, she loses control of her own body. Her limbs fly of their own accord and obscenities escape her tongue at all sorts of random intervals.

All Ernestine wants is to feel some sense of control over her own body and her own life.

Known for years simply as the mysterious "Mme. Dampierre" in medical journals, this woman was key to the discovery and naming of this curious condition. Her story is extraordinary. Her influence prevails though previously unknown and forgotten.

Inspired by true events, Madamn tells the story of the cursed noblewoman who refused to hide.