The wife of the Düsseldorf Police Council Rainer Bachmann is kidnapped. While trying to save his mother Monika, the adult son is shot dead. His widow Nicola desperately seeks support.

Beneath the decadence of 1929 Berlin, lies an underworld city of sin. Police investigator Gereon Rath has been transferred from Cologne to the epicenter of political and social changes in the Golden Twenties.

Helen Dorn is an expert Police Commissioner, who’s years of experience have given her killer instinct when it comes to crime. On the department head’s orders, Helen Dorn become involuntary partners with Detective Chief Superintendent Gregor Georgi, with Helen in the role of Georgi’s superior. After initially ruffling some feathers, as Gregor thought he was about to take over a case as head investigator and not confronted with a new superior, the two prove to be a solid pairing: Helen’s famed intuition is matched by Gregor’s rational analysis and precision. But will he be able to unearth her mysterious past?

Two very different brothers: Gregor (32) and Pietschi (30). Whereas one is reliable and committed, the other is spontaneous and aimless. Gregor is married and is a good doctor; Pietschi in contrast is something of a ladies’ man and a hedonist. According to tradition, the two see each other at least once a year for a weekend of sailing. But this year Pietschi drops out without leaving a message, and simply disappears. Gregor’s life goes on, but he is confused and searches everywhere for a sign of his brother’s whereabouts. The more Gregor realises how little he knows about his brother, the more he becomes fascinated by these things he doesn't know. And the longer Pietschi remains missing, the more obsessed Gregor becomes with his brother’s fading echo, even going so far as to try and slip into his brother’s life. But what happens when one of them suddenly disappears from the mirror image? Can the other continue to be the person they are. Or rather, were?

A couple assassins are taking a job which will bring the whole world in disorder.

SOKO Leipzig is a German police procedural television programme, a spin-off of the earlier German police programme SOKO 5113. It was first broadcast on 31 January 2001, on German television channel ZDF. On 12 November 2008, the first part of a two-part crossover between SOKO Leipzig and British police procedural The Bill was aired, with the same version being shown on both ZDF and British television channel ITV1.