A school teacher discusses types of government with his class. His students find it too boring to repeatedly go over national socialism and believe that dictatorship cannot be established in modern Germany. He starts an experiment to show how easily the masses can become manipulated.

Anna is illiterate. Her patronizing husband Rolf has always taken advantage of this to patronize his wife. But that is over now. Anna took the difficult step and moved into her own apartment with the children. Fortunately, her best friend Maria lives next door to help Anna read important forms. Anna also found a job through Maria's mediation. Anna waits in a bistro in which the eccentric best-selling author Tom Dellwig is one of the regulars. The vain writer always expects everyone to dance to his tune.

The widowed, single-parent pastor Anja has a silent admirer in Herbert. But then she falls in love with Jochen.

Franziska is a romantically inclined housewife with two children and a husband who spends most of his time traveling around the world and working as a director. However, he cheats on her with his actresses. Franziska goes to see the lawyer Enno Winkel about buying a house, but he prefers to handle divorces. And without realizing it, she suddenly inadvertently initiates her own divorce...

The ENT doctor dr. Arnold Fischer, called Arnie, always tries to please everyone. His friend and colleague Gregor is quite different: Purposeful and enterprising, he thinks especially of his own progress. Together, they want to expand the practice to a state-of-the-art tinnitus center. For this they need the neighboring apartment, but lives in the Mathilda, in which the shy Arnie is secretly in love. He does not have the heart to show Mathilda out of the apartment. And so Gregor tries with not always fine methods to get rid of the unpleasant tenant - which ends in a complete disaster ...

Attractive uncompromising politician Mona Dengler is investigating the tobacco industry. Tomboyish bodyguard and single mother Johanna Sieber is assigned to protect her. This endangers Johanna's son. Mona unexpectedly falls for her.