The blue angels

In the the film, the professor Rath gets into a place of Lola Lola. When he goes into this place, he sees an another professor is surprised and welcomes him to come in. However, professor is obsessing with Lola. The different characteristic is the basis of the tragedy that happened in the end of the film. Also, there is the comparison between the beginning and the ending of the film. In the beginning of the film the students are sitting in the class and the class is light. But in contrast, the class is empty and none of the students is sitting, and the class is dark. It seems Rath lost everything,