Isak hunts down Roland after the aftermath of the Season 1 finale, while Roland makes his getaway. To make matters worse, Isak’s kills are uncovered, triggering a full-scale investigation. The media soon dubs him the "Bay Harbor Refiller." Bruno begins stalking Isak, convinced that he is behind the burning of the Gustav Vasa pavilion.
In the Season 2 premiere, after Roland’s getaway, Isak is left to cope with the consequences of Roland's actions. Meanwhile Bruno stirs up trouble by suggesting that Elias's death doesn't look like an incident.
After Isak's kills have been discovered. He begins his search for Roland, but Roland is already one step ahead. Meanwhile, Bruno visits Isak’s old apartment.
Isak must remain hidden in the shadows as a high-profile FBI agent arrives in Stockholm to investigate the newly discovered serial killer.
After Isak’s kills are exposed and Roland is on the loose. Both are forced to find new methods of disposal to avoid raising suspicion and revealing their true identities.
Roland discovers that the man who murdered his mother is still alive. So when the clock strikes twelve, he confronts the killer as part of his unfinished revenge plan.
Isak uncovers a lead on Roland, only to realize that Bruno is stalking him. Meanwhile Gustav gets a low freaky braid and the Bay Harbor Refiller case is put on hold.
Isak’s old reputation for destroying chairs he's sitting on catches up with him. Gustav faces backlash over his new haircut, and Roland’s new friend discovers his past.
Isak decides that boxing isn't working for him and tries Muy Thai. Alexander find a clue that points to the "Bay Harbor Refiller" being right under their noses.
Isak tries to distance himself from the group, but Alex’s manhunt keeps him on edge as he struggles to stay one step ahead. However, it’s Isak’s rival who learns his secret.
With Bruno being wanted missing for 6-7 days now, Isak needs to make a quick move. A clean kill while dealing with him. Meanwhile Roland’s cover is slowly beginning to unravel.
As Isak needs to juggle two things. Keeping Bruno locked in the cage and tracking down Roland’s home. Isak begins to remember old moments from the friend group, when everything was still at peace.
Roland finds Bruno and the police finally settles the case of the Bay Harbor Refill, but the heat's not entirely off Isak as the flames literally close in. And before it’s over, he has one more thing to take care of—Roland.
As Bruno gets framed as The Bay Harbor Refiller. The focus shifts to Roland. Gustav devises a plan to apprehend Roland, while Roland prepares for his departure. Isak makes his decision, and it results in devastating consequences.