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.

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.

Yvonne's mother shows up and she tells him about the arrangement with Oskar. They begin to fight, prompting Oskar to leave quickly.

Yvonne and Oskar bond over a reading of Rainer Maria Rilke's "Der Panther." Meanwhile, his brother continues to make big plans...

Oskar tells his brother that he won't be giving him his money. He then visits Yvonne's house, but is quite shy around her.

Mr. Ohrmann tries to call to turn himself in, but the line is busy. Luckily, Dr. Gössel is determined to give him a chance.

Oskar finds out that he is terminally ill and only has four weeks to live. Meanwhile, Yvonne's sponsored child from Zimbabwe shows up at her front door.

Marga confronts Mr. Ohrmann with her terms, but it may be too late for him to do the right thing and save himself.

Oskar has a crush on his neighbor, a famous actress, but only has contact with her through the items she gets sent to his store.