Die Putzfraueninsel (1996)
Irma Caspari has abandoned her studies and now works as a cleaner. Her newest clients, the Schwarz family, appear to be part of the upper class. Frau Dr. Schwarz is a judge and is set to become the state's supervising judge soon. Irma holds her own opinions about the wealthy and has no qualms about using the Schwarz family's luxurious bathtub while on the job. However, one day Irma uncovers a strange occurrence - the Schwarz family has a captive in their cellar, an elderly woman who can be heard groaning in the dark. Determined to take action, Irma decides to intervene.