Surveillance footage showing Anna leaving the Tempo party leads Karppi and Nurmi to the home of entrepreneur and real estate investor Stig Olander.

Karppi and Nurmi look into the Lexus's connection to Anna. Alex Hoikkala receives a startling ultimatum. Usko takes offense to a police theory.

A co-worker reveals a clue to Anna's future plans. Linda finds herself in harm's way. When Karppi is sidelined, Nurmi gets a chance to show his mettle.

Karppi's initiative rubs some the wrong way. Alex makes an admission to Linda. A card found in the Lexus reveals who was driving it after the party.

Karppi searches for Roope Hoikkala and Henna, who've disappeared for very different reasons. Usko and his daughters face a difficult day.

Karppi and Nurmi travel to Anna's hometown after learning she visited her estranged parents right before her murder. Alex's business suffers a setback.

A new autopsy changes the timeline of the murder. Nurmi gets an unexpected therapy session. Usko goes shopping on the black market.

A former suspect offers up surprising information about Anna's years on the swim team. Alex tries to confirm who was behind the new test results.

Usko seeks revenge, shifting the police's focus onto him. After a night of drowning their sorrows, Karppi and Nurmi look at the case's big picture.

Searching for evidence underwater, Nurmi gets unexpected company. Karppi figures out what the white capsules in the diving video are and lays a trap.

Following a shocking confrontation atop a building, Karppi and Nurmi realize that Anna Bergdahl's murderer may be someone they've not yet considered.