A series of stupid coincidences causes the young Munich painter Paul to convert his uncle's castle into a hotel for four weeks. But he can't complain: business is good and he has plenty of guests. For exmple, there's Theo Muller with his revue troupe. For reasons of "sound", Muller calls himself "Miller", which, of course, causes more confusion. His daughter, the beautiful Evelyn, is confused with Mabel Miller, who has come to the hotel on a mission for her filthy rich father ... namely, to estimate the worth of the castle.

When the schoolgirl Kate defends her friend, she is expelled from school. To conceal the incident from her parents, she positions herself ill. Promptly she falls in love with the treating doctor who cures her sudden illness not only, but marries his patient also immediately. But Kate soon bores the life of a doctor's wife. So she decides to secretly catch her ​​high school.

Some dastardly criminals have stolen some top secret plans and tattoo them on the back of a woman so she can sell them to the highest bidder in Lisbon. This woman plans to take the place of a 'Sidney Royce', a legitimate traveler going to Lisbon as a reporter. Crossed signals allows the real Sidney to reach Portugal first, where she is pursued by those trying to obtain the plans and US government agents trying to prevent the sale.

An unattractive secretary is hired so the men in the office will focus on their work, but comic complications ensue.

'Love and the First Railway' is what this movie's title would mean in English. This is one of those films that depicts fictional characters participating in an historic incident. The actual first railway was built in England, of course. But according to this movie, the first railway (in Germany, at least) was built from Berlin to Potsdam, in 1838. I haven't the faintest idea if that's correct, but the people who made this movie do seem to take a great deal of interest in historical accuracy, so I'll take their word for it. Anyway, a title at the beginning establishes that this movie is set in 1838.

On their way to a boxing competition in Buenos Aires, the criminal investigator Harry Winkler from Berlin and Conny Steven of Scotland Yard, meet in Lisbon. Both have a 90 minute break before their ship leaves for South America. They end up meeting Ilse Siebeck, a young woman and through her become part of a criminal mystery. Ilse's uncle is murdered and Harry Winkler is quickly able to determine that the man who murdered her uncle is the exact same man who murdered his father a few years earlier.

A lawyer is abandoned by his wife. To save face, he introduces his friend to a client as his wife. But she has just been divorced and was supposed to be set up with this friend by an aunt. Numerous misunderstandings arise until in the end everyone breaks up reconciled.

Film by Seitz.

Film by Fred Sauer.