Description:Teaming up with Swedish cops Oskar Norgrim and Johanna Carlsson, Stella pieces together Ambassador Brömly’s shocking past. And discovers the killer’s motive. Meanwhile, Stella's personal life is about to take a significant turn as her boyfriend, Jamie, suggests a change in their relationship. But as Stella tries to process what it means, she makes a fateful decision. On the other side of the Atlantic, a kid practising BMX stunts over water finds a skeleton on a lake bed. When the victim is revealed to be a British cop, the FBI ask for assistance. Stella’s arch-enemy from her own department gets the case. She flies to Chicago and soon discovers the murderer’s identity. The scene is set for a showdown in Sweden as DI Roisin Griffin pursues her vendetta against Stella all the way to the north of Sweden during the annual festival of Midsommar. Even as Stella is fighting to bring the killer to justice, shadowy figures from her past are planning to silence her before she can expose their brutal methods.