Blau blüht der Enzian 1973

The students at a school of hotel management repurpose the institute into a hotel with a show stage, double-cross the principal, the groundskeeper, and a grumpy millionaire, and cause so much mischief and confusion that, in the end, there is only one thing left to do: laughing to the bitter end!

Die lustigen Vier von der Tankstelle 1972