Homicide detective Evert Bäckström is led to a woman’s skull found on a remote island. When they learn her identity, the investigation takes an unexpected turn.

Jaidee seems to have died twice. Bäckström wants to interrogate the widower, but Prosecutor Hwass disagrees. Will Bäckström give in?

Bäckström heads to Thailand to dig for clues around Jaidee’s death. In Stockholm, the team follows up on missing Asian woman Mi Mi. Bäckström starts to doubt himself.

Bäckström has a theory about what might have happened to Jaidee, but the team is skeptical. Someone on the force may be giving information to a criminal gang.

Bäckström is suspended but continues investigating. At the scout campground, he confronts a man linked to both Jaidee and the location where her body was hidden.

Bäckström struggles with feeling betrayed by someone close to him. Important questions still need answers. Secrets have been hidden, and oaths are walling in the truth.