The English intelligence officer Duke Melincourt, going on a secret mission to France, understood that many dangers awaited him... however, he did not expect to become a victim of the charm of the innocent young Frenchwoman Aimé, who fell in love with him with all the fervor of her first feeling and stubbornly saw in him, heartless cynic, noble knight! Make fun of a girl's love? Abandon her in the hour of mortal danger? Or to protect her at the risk of his own life? The Duke faces a difficult choice...