20 volunteers agree to take part in a seemingly well-paid experiment advertised by the university. It is supposed to be about aggressive behavior in an artificial prison situation. A journalist senses a story behind the ad and smuggles himself in among the test subjects. They are randomly divided into prisoners and guards. What seems like a game at the beginning soon turns into bloody seriousness.

Stefan and Kai run a thriving business: a home-grown cannabis trade disguised as a pizza delivery service. For now they just have to fight aphids.

Frederike Bader, a former policewoman from Berlin, currently living in witness protection in Passau, is supposed to help her ex-boss Jochen Mohn - formerly a witness protector, now head of the Passau CID - in a private matter.

Maria is a student at the university of Essen, Germany, living and working in a gray, unpleasant, and anonymous environment. While she has little problem finding someone for a one night stand, she rebuffs her lovers in such a rude way that they actually don't know what's going on. But what seems to be a negative attitude at first glance is in fact much worse: Maria is suffering from borderline syndrome, a serious psychotic disease that makes her fail to develop a continuous, reliable personality, from her own perspective as well as from the perspective of those she meets. Then one day, she bumps into Jan, a student who falls in love with her without delay. He's awaiting a hard time when he has to learn how hard it is to stay loyal and faithful to a person who, in her own words, "has a different world inside of her head" and who feels that "there is something inside of me that eats me up."

A perfectionist meets a chaos queen. When the doctor Konstanze receives a surprise visit from her lively rehab friend Jackie and her children, the house is soon turned upside down. A big challenge for the tidy doctor, but also a great opportunity to improve her poor social skills. But in contrast to the very different women, their children get along splendidly.

After a mid-air collision, an uncontrollable passenger plane with 90 souls on board speeds through the skies over Germany. The impact point for the inevitable plane crash is easily calculated: the center of Berlin. Now the race is on to prevent the catastrophe. Will the plane have to be shot down by fighter pilots?

Structural change and unemployment in Schönstett are a real problem for Julia Fischer and her husband Martin. Especially since Martin acts as a houseman after his company went bankrupt and Julia brings the money home. A seemingly ingenious deal by the mayor is intended to remedy the situation and provide an upswing. But when women riot, a planned sit-in turns into an unscheduled sex strike...