Falke and Grosz investigate a murder in Hamburg's red light district.

A botched investigation leads to desperate measures for Falke and Grosz.

When Julia Grosz's friend Ela, who infiltrated Hamburg's left-wing autonomous scene as an undercover investigator for the LKA, disappears without a trace, Grosz sets out to look for her. Under a false identity, she goes into the hedonistic, liberal milieu in which her friend seemed to have lost herself.