What's the name of Count Fogg's movie?

Bat. Douban official website said that Count falk's movie was called Bat. Bat is a German film. The story takes place in the Austrian hot spring resort in Badeuil Schell, 1874. Byron Eisenstein is going to jail for insulting officials. Under the leadership of Dr. Falk, Earl Eisenstein decided to go to the ball hosted by Russian Prince Aurov, and have a final carnival before going to prison. In fact, this is Dr. Fogg's carefully planned revenge. At this time last year, Dr. Falk dressed as a bat at a fancy dress party and got drunk as a fiddler. At that time, Baron Eisenstein did not take care of him, but left him in the street, which made Dr. Falk make a lot of jokes. At this dance, Eisenstein's wife Rosalyn and Aadilah, the maid at home, will remain anonymous, and Baron Eisenstein has experienced various adventures with them.