30 years after the tragic rockslide, the groundbreaking ceremony for the construction of the vacation resort looms. Rosa is scheduled to go to California in a few days to be trained as a profiler, goes home to say goodbye to from her parents in the village she’s from. When she discovers the body of famous artist Armon Todt – her first big love - on the day after the groundbreaking, the..

The hunt is on for the kidnapper, who’s holding Amina hostage, and probably killed Armon, too. Rosa and Kägi don’t take much of aliking to each other – they each conduct their own investigation. While Rosa talks to the locals, who aren’t saying much, Kägi wants to hold a big press conference to make the kidnapper do something rash. Rosa fingers weird loner Urs Glu..

When their leads cross, Rosa finds out what Kägi’s real mission is: He came to the little mountain village to investigate the Arab investor’s bodyguard Rashad, who’s suspected of ties to Al Qaida. Kägi found incriminating images on Rashad’s hard drive. It seems he’s blackmailing the investor’s family. Rosa confirms this theory when she finds a video sh..

Lying in a coma, Amina is suspected of Armon Todt’s murder. Her father is very upset at the accusation and threatens to bail on the resort project. Kägi gives Rosa Amina’s notebook, who was going to write Armon Todt’s autobiography. Her notes reveal Armon always spoke of 13 victims of the landslide, not 12. The charcoal porträt portrait of a long-haired man with a beard..

The investigators face a lot of questions: Was the rockslide triggered by an explosion? That’s what the forensics on the bones Rosa found in the woods would indicate… And what’s the meaning of the glass eye belonging to a Martin Suter, who’s been missing for 30 years, found in Armon’s studio? An anonymous source tips the investigators off to a photo of three activist..

After a brief chase, Rosa corners her Aunt Barbara on the roof of the Federal Police HQ, who confesses her involvement in the rockslide and begs Rosa to forgive her. Then she makes a tragic decision. At home, Rosa discovers a piece of paper in the trash which gives her pause: She digs it out of the waste and unfolds it: It’s a drawing by Armon, dedicated to Rosa on the eve of the groundbreak..