The likeable and carefree Grand Duke of Abacco is in dire straits. There is no money left to service the State's debt; the main creditor is looking forward to expropriating the entire Duchy. The marriage with Olga, Grand Duchess of Russia, would solve everything, but a crucial letter of hers about the engagement has been stolen. Besides, a bunch of revolutionaries and a dubious businessman have other plans regarding the Grand Duke. With the intrusion of adventurer Philipp Collins into the Grand Duke's affairs, a series of frantic chases, plots and counter-plots begins... 　　译文(2): 可爱又无忧无虑的 Abacco 大公陷入了困境。没有钱来偿还国家的债务，主要的债权人正期待着没收整个公国。与俄罗斯大公夫人奥尔加的婚姻将解决一切问题，但是她的一封关于订婚的重要信件被偷走了。此外，一群革命者和一个可疑的商人对大公还有其他计划。随着冒险家菲利普 · 柯林斯对大公事务的介入一系列疯狂的追逐，阴谋和反阴谋开始了..。