Katharina Hendriks loves her job as headmistress of a vocational school. However, cutbacks threaten to spoil her job, as does the arrival of her brother Erik as a guest teacher. Their visions clash and this has consequences not only for the atmosphere, but also for the pupils.
Franziska Dreyer and Sebastian Pauli are a happy couple. When one day the police arrest her boyfriend on suspicion of murder, Franziska assumes it's a mistake. But in a trial marked by circumstantial evidence, Sebastian is tried, convicted and sentenced to life. Franziska believes he's innocent and fights to get him released. This puzzles her parents and friends who advise her to cut all ties to him. Her reaction is to marry Sebastian in prison. Then Franziska discovers completely unknown sides to her husband and now doesn't know who or what to believe any more.
Romeo and Juliet on the Kiez with Cupid in the form of the attractive sex worker Elisa: the young artist Nikolaus falls in love with the well-behaved law student Sandy. He ends up in prison for an extraordinary declaration of love.