Every evening, the fanciful singer Eugène Charlier triumphs on the stage of the Folies-Bergère. His greatest success is an imitation of his double, Baron Cassini, a famous financier. But the baron, on the verge of bankruptcy, hurriedly left the country and his associates decided to call on Eugène Charlier to replace the fugitive at a reception where he was to meet the Minister of Finance. His interlocutors see nothing but fire. Geneviève, the baron’s abandoned wife, is herself deceived and seduced by the new ardor of the man she believes to be her husband.