The niece of the asylum's owner. Though appearing calm, she is claimed to be highly dangerous. She is abducted by guards, rescued by Gaston and Julien, recaptured, and sentenced to execution by fire before being saved during the prison break.
The impostor doctor claims Eugénie as his niece to maintain control.
Gaston takes initiative to save Eugénie from the guards.
Eugénie and Julien are reunited during the rescue and share captivity.
The legitimate doctor is Eugénie's biological father, held captive by the impostor.
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