Ms. Bredow comes to have dinner at the house of Ms. Lorenz, who is still in the process of moving into and decorating her new apartment. Away from the office, the two colleagues begin confiding in each other.

Ms. Bredow confronts Mr. Lehmann about his inappropriate remarks toward the new colleague, but he accuses her of professional negligence. Ms. Lorenz takes Ms. Bredow’s side.

It’s Judith Lorenz’s first day at the Hanover Health Department. Her new colleagues approach her openly and with interest. But Mr. Lehmann makes an inappropriate comment to her at the very first chance he gets.

All's well that ends well! Rosa admits to having made up everything in order to get her father's attention, which means Henning can be reinstated; meanwhile, Lothar finally cracks his case.

Dirk, Harry, and Katja speculate about why Rosa would make up such an extreme story about Henning. Henning himself wants to confront Rosa, but Harry stops him; meanwhile, Dirk and Katja pay Rosa’s absentee father a visit on his ship.

Katja and Dirk confront Henning regarding Rosa’s accusation. Meanwhile, Lothar tries to follow up on his internal assignment without his colleagues noticing – but then Nicki catches him in the act.

After learning what Henri and Emma have uncovered in their investation, Hannes realizes the truth about the origins of the tea Debbie sold to them. In the meantime, the maintenance technician hurries over to fix the elevator – but maybe it wasn’t such an emergency after all. See for yourself!

At lunch, it becomes clear that Debbie is actually a pretty shady character. Meanwhile, Henri is kidnapped, and Nina and Max finally have it out in the broken elevator…

When Henri notices that his Geiger counter has gone off, he quickly alerts Emma. Emma’s convinced it’s just an old piece of junk, but when Debbie sees what’s going on, she makes a suspicious phone call. Meanwhile, Max is still refusing to talk to Nina.

While cleaning out the headquarters to find items to bring to the flea market, Henri digs up an old Geiger counter. Meanwhile, Hannes’s ex-girlfriend Debbie shows up and starts behaving inappropriately, and Nina doesn’t understand why Max still won’t talk to her.

Just as Tarik realizes that Emma is hiding in the houseboat bathroom with the stolen hydrangeas, Max arrives and threatens to call the cops. Later, Max angrily approaches Marcello about Nina, but they don't share a common language, which results in a big misunderstanding.

Nina's grandpa arrives in good spirits. He’s even brought along Nina's cousin Marcello, who Max still thinks is Nina's ex-boyfriend! Meanwhile, Emma watches with interest as Jackie gets into a heated argument on the phone with her irresponsible brother, Marvin.

Emma discovers that hydrangeas are being cut off all over the neighborhood. Meanwhile, Jackie is heartbroken over being rejected by Nina’s dad. But that’s not her biggest problem right now…

Mr. Weber finally understands what it is that Lisa wants from him – and lays down the law. Meanwhile, Dennis — furious at having been snitched on — runs off with Lisa’s diary.

“Das Tagebuch” (“The Diary”) is a one-year short film project by Jan Herdin that was created as part of the Media Design program at Ostfalia University of Applied Sciences. Lisa is a lonely teenager growing up in a single-parent household. She finds it difficult to get along with her fellow classmates and has a crush on her teacher, Mr. Weber.