Frau Starke finds a diary that reveals that her husband had an alibi, proving he couldn't have murdered Katja's father.

Nico has been wearing clothes borrowed from his new friends ever since he lost his bag. On a bakery run, he runs into Selma, who happens to be carrying it!

Everyone weighs their options regarding the suspect's wife, who remains in custody, while Nicki's father proves himself to be a very difficult person to get along with.

Katja tells her mom that the police have found the murder weapon that killed Katja's father. Meanwhile, the wife of the top suspect is brought in for questioning.

Selma and Lisa talk on the phone. Lisa is still on vacation and enjoying great weather. While they are talking, Selma makes an exciting discovery.

We see how Lisa and Selma unknowingly walked right by Nico's lost bag after it got left on the street. They were discussing Lisa's vacation plans and Selma's last trip.

While Katja, Ben, Henning, and Harry all look into the weapon that has surfaced, Lothar meets Nicki's father, who is a very difficult person.

Katja learns that the gun found on a teenager is the weapon used years ago to kill her father, who was also a cop.

Yvonne's mother seems to have her own agenda. Oskar and Tom's uncle Oskar suddenly appear at the bookshop.

Lothar finds out why Nicki is so stressed out about her upcoming exam. Meanwhile, Katja and Ben investigate when someone overhears a gunshot.

While Yvonne tries to impress the casting agents, her alleged sponsored child tries to get Oskar's brother involved in the scam she is running.

Everyone at the station speculates wildly when Dirk is mysteriously called away. Meanwhile, Katja observes the anniversary of her father's death.

Yvonne auditions for a role that has parallels with her own life, but the casting agents are skeptical of her.

The weather in Mainz was perfect for the celebration of Rosenmontag with a huge parade, which people came from all over the region and the country to see.

Nico and Inge go to the bakery together. It's not easy to decide what kind of bread they would like, but in the end they reach a compromise.