Undine rescues a prince from drowning, and leaves him unconscious on shore, where he can be found, but she has already fallen in love with him. Unable to enjoy life below the waves, the mermaid makes a deal with the Sea Witch to become human. The mermaid must also give her voice as payment. And her humanity is only conditional: if she can make the prince fall in love with her and marry her, she can gain a share in his soul and be truly human, but if he marries another, she will die at the next sunrise. It turns out that the witch only made her believe she would die if the prince married another as a Secret Test of Character: by refusing to kill the prince even to save her own life, she proves that she already has a soul. So she remains human, gets her voice back, and sets out to explore the world.

Hedi is the new neighbor of Iva, who raises her daughter Sofia by herself. The two women start a relationship and Iva is desperately in love with Hedi. Suddenly Iva's father appears. Hedi feels strongly attracted to him. It seems that only one world exists for Hedi. Her own.

The german performance artists Greta & Rodi are celebrating the last 24 Hours of their relationship. Planned as an act of gratitude & the last art project at the same time, things get out of control...

During their tour, Werner Träsch and his colleagues Ralle Schieber and Tarik Büyüktürk arrive at a housing estate where the businessman Waselitzki draws their attention to graffiti. Waselitzki plans to rent out the apartments in order to then rent them out again at a higher price. Träsch and his colleagues want to prevent this with all their might.

A group of actors are rehearsing an historic escape from Germany of 1939: The Cruise Liner St. Louis is on its way to Cuba, 900 Jewish refugees on board. Cuba denies access. On board: Paul, Elsa and their son. Do they have to return to Germany again and probably die? A group of today refugees from Africa, fleeing from war and death in Syria, enter the theatre. They are supposed to work here as extras. A culture clash begins and becomes a crossover story between escape 79 years ago and today.

It's Leyla's last day on Earth. With a ticket to Mars, she can finally escape the dangerous world ravaged by climate disasters. The countdown to her departure is on, and Leyla struggles with the agony of letting go.