We first meet Carla Nowak (Loenie Benesch), a newly hired seventh-grade teacher, as she assists in investigating cases of theft among the student body. She’ll be the audience surrogate in The Teacher’s Lounge, director İlker Çatak’s fascinating character study of class and status in a German school system, and her introduction in the opening scene concisely demonstrates the central dynamic between her and the rest of the staff.