In 1806, Andre Duvalier, a French soldier lost in the Confederation of the Rhine, is saved by Helene, a young woman who bears a resemblance to Ilsa von Leppe, the wife of the Baron von Leppe who died twenty years before. Andre sets out to investigate Helene's true identity and, in doing so, learns the Baron's darkest secret: After he found Ilsa with another man, the Baron killed his wife while his servant killed her lover.