Immanuel Rath is a fictional character from the 1931 film The Blue Angel, directed by Josef von Sternberg. He is portrayed as a strict and conservative schoolteacher who becomes infatuated with a cabaret singer named Lola Lola. His obsession leads him to abandon his professional life and ultimately results in his downfall. Rath's character represents the conflict between societal expectations and personal desires. As he descends into a world of debauchery, he loses his dignity and respect, illustrating the dangers of unchecked passion. The film explores themes of love, betrayal, and the consequences of one's choices.