[2] The so-called yellow house Pinnasberg is a Hamburg brothel for women, which is led by authoritarian "General" Werner Zibell, supported by its busy night porter.

When one of his guys dies, he is replaced by sociology student Stefan Bornemann, who intends to do practical studies here.

Here, Stefan falls in love with Luise Zibell, the daughter of the brothel owner.

She persuades him to accept Stefan as a son and set the yellow house for sale.

[1] The film also had the alternative German title Eine Wohltat fur alle Frauen: Das gelbe Haus am Pinnasberg.