Gereon is on the subway where communists give out flyers to the passengers. While on his way to work, he stumbles into a demonstration. The protesters throw stones at the police and shout "Berlin bleibt rot" (Berlin stays red). Gereon is eventually able to get out of the commotion and meets up with Bruno. They examine apartments of alleged communists, but don't find any incriminating evidence. As they want to leave, a large convoy of policemen shows up and starts randomly firing at the crowds which horrifies Gereon. He and Bruno flee into a nearby house. Two civilian women standing on a balcony are hit by bullets and seriously injured. Gereon is able to find a female doctor who treats poor people (including Charlotte's mother) and is a member of the KPD.
Later, Gereon and Charlotte, who now writes his reports, go to the morgue to examine the dead body of the Russian engine driver. Charlotte points out that the victim's bruises are uneven and he therefore probably didn't die from natural circumstances. Gereon is furious about her remark and sends her away. He wants to close the case, saying that the man had an argument with other Russians who resolve conflicts this way.
Tropes:
- Blindfolded Trip: "Mutti" reveals that they blindfolded her before transporting her to the place of the pervy photo shoot in the west of Berlin.
- Cold-Blooded Torture: We learn that the Soviet agents continued to torture Boris even after he confessed. His hands were crushed by the car.
- Crazy Cat Lady: Gereon and Bruno meet one during their house search.
- Deceased Fall-Guy Gambit: When Kardakov accuses Sorokina of treason and attempts to kill her, she successfully shoves suspicion off onto the dead Boris.
- Defiant Stone Throw: The melee between police and communists begin after a stone throw.
- Flashback Cut: When Gereon sees the body at the morgue we get a swift flashback to the scene where Boris was kidnapped in front of Gereon.
- I'm Cold... So Cold...: One of the women who got shot mentions this before dying.
- Montage Out: Katelbach informs Behnke of the 200 dead in the May Day crackdown – Behnke expresses doubt as to Gereon’s involvement. Charlotte returns to the dance floor and bar, smoking ashamedly. Greta goes to a Catholic homeless shelter, but is rejected due to a lack of children. Gereon looks at the photograph that is the only thing in the letter addressed to Kardakov.
- Planning for the Future Before the End: You know that the wounded woman won't make it when Hugo starts telling her about moving out into the sun and meeting her partner again in three weeks.
- Revealing Hug: Sorokina’s expression as Kardakov embraces her is cold and unfeeling, as she knows what she must now do.
- Satchel Switcheroo: Sorokina switches the nameplates for he train cars AB 3221 and TY 2305.
- Secret-Keeper: Charlotte restates her promise to keep Gereon's secret.
- Sexual Extortion: Bruno pressures Charlotte into having sex with him by threatening to bust the Moka Efti brothel.
- Too Dumb to Live: The two woman who step onto their balcony during the street shooting and get his by bullets.
