In search for answers, Ulrich realizes that the dead boy is his brother Mads. In addition, he comes across troubling family secrets in his research. He confronts Regina, who has just received a fatal diagnosis.
Tropes:
- Accidental Truth: Martha is correct when she says Mikkel is dead, but she doesn't know how right she is.
- The Bully: In 1986, Ulrich and Katharina tied Regina to a tree in the forest and left her alone at night.
- Catapult Nightmare: Regina has a nightmare about being bullied as a teen and wakes up that way.
- Cooldown Hug: Magnus hugs his mother Katharina after she beat up Regina.
- Cry into Chest: Katharina cries into Magnus's chest after she slapped Martha when the latter told her that she thinks that Mikkel is dead.
- Distinguishing Mark: Ulrich already has suspicions but it is confirmed that the dead boy is Mads when he sees the scar on his chin that Mads received when the brothers were arguing around and Mads fell on a glass table.
- Failed a Spot Check: Apparently Ulrich never investigated his case all the years as a police officer.
- Hidden in Plain Sight: Mikkel is clearly visible in 1987 batch of students posted in the school.
- Internal Reveal: Ulrich finds out that it was Hannah who lied to the police that he raped Katharina.
- He also finds out that his father was having an affair with Claudia Tiedemann.
- Ouroboros: Jonas finds a red string with a metal Ouroboros ring in the cave in the forest.
- Kid from the Future: In 1986, Jonas meets his mother when she was a kid.
- The Reveal:
- The dead boy from the first episode is Ulrich brother's Mads, who has been missing for 33 years.
- Peter and Tronte have a log of all the disappearances, down to the minute.
- Secretly Dying: Regina has received a breast cancer diagnosis but is keeping it secret from her husband. When he calls the mammography center, they tell him that she urgently needs to arrange an appointment with her doctor.
- School Play: Martha takes part in a school theatre production.
- Time Travel: Jonas has travelled back to 1986, too.
- And so has Mads, from 1986 to 2019, dying during it.
- Title Drop: "Sic Mundus Creatus Est" (Thus the world was created) and a Triqueta are inscribed on a metal door that Jonas finds in the cave.
- Trauma Swing: Katharina is seen sitting lonely on the swing in their garden.
- You Should Have Died Instead: Because Ulrich bullied her and Mads was always kind to her, Regina tells Ulrich that she always wished he was the one to have disappeared instead of Mads in 1986.
