Leonora and Robin try to discover more about the girl from the nightclub and decide to infiltrate a Halloween party. In the past, Nikolaj and Lasse discover a new aspect of their relationship.

Robin is determined to find out what happened to Lasse, and he begins his initiation ritual into the boys' choir. Mikael discovers that Nikolaj and Emily have been keeping a secret from him.

Leonora worries that Robin is getting too close to Nikolaj and the choristers, which disrupts their collaboration. Meanwhile, Seb reveals some damning evidence about Robin to Nikolaj.

The choir boys and hockey girls attend the November Rave on the island, where Leonora decides to confront Nikolaj about Lasse’s death. Meanwhile, Robin runs into a familiar face.

Nikolaj reveals the truth about what happened at the lake with Ingrid and Lasse. Robin makes a drastic life decision, and Nikolaj is forced to confront Mikael about his actions.