Due to his developmental disorder, the autistic inspector Leander Lost has a photographic memory and a feeling for whether his counterpart is lying. For this, he has trouble understanding irony and understanding social and emotional connections. As part of a European exchange program, Lost is transferred to the small fishing town of Fuseta, where he is supposed to help solve the murder of a private detective.
Summer 1939. Influential families in Nazi Germany have sent their daughters to a finishing school in an English seaside town to learn the language and be ambassadors for a future looking National Socialist. A teacher there sees what is coming and is trying to raise the alarm. But the authorities believe he is the problem.
What a curious plan of Lya. Putting sleeping pills in the morning tea of her father. Pulling the sleeping wheelchair user to the vegetable store of her brother and attending secretly the acting exam. And all this only because Lya thinks that eight years of caring for her father where enough tribute to the family.
The four friends Musti (Reza Brojerdi), Hannah (Lea van Acken), Yannick (Jerry Hoffmann) and Tom (Lucas Reiber) could not be more different. But they have one thing in common: They are all pretty nerdy misfits who only just survived school thanks to their mutual support. For graduation, they want to prove it to everyone and promise nothing less than the craziest party of the year. However, the closer the legendary party gets, the more the friends realize that there seems to be something between them. Be it unspoken feelings, hurt pride or fear of the future. When the big day of the party finally dawned, the four of them were no longer just about celebrating, but about saving what is most important to them: their friendship!
SHH is the story of friendship being put to the test. On the night of a school party, four girlfriends are waiting to be questioned by the school's principal. The bond between the girls appears to be strong and unbreakable. One of them however seems to be under more pressure than the rest.