The series opens with a scene showing the facade of Hotel Drott on Tunnbindaregatan in Norrköping. It also heavily features the Visualization Center in Norrköping, which plays a major role in the theory about the murder. According to Norrköpings Tidningar, Melker Becker described the theory presented in the series as the best and most credible he has seen.
The specific evidence or methodology from the Visualization Center used in the theory has not been detailed, and it remains unclear how this involvement differs from previous investigations into the Palme murder. The full content or conclusion of the theory has not been disclosed, and it is unknown whether it has led to any new official investigation or police action. Additionally, the identities and roles of four private individuals, including Simon Lundell, mentioned in connection with the series have not been clarified.
I would probably say that this is the best and most credible theory I have seen.