Policewoman Marta Trevisan is found dead in the woods of Val Resia, apparently a suicide. Commissioner Battaglia realizes it is a murder and, investigating with his inspectors, discovers that Marta owned a mysterious 1945 painting painted with human blood. But the investigations are complicated by the arrival of the new director, Albert Lona.

Old Emmanuel disappears, leaving signs of a struggle and Diego's footprints in the house. Teresa discovers crucial details by questioning him. Meanwhile, the attraction between Sandro and Krisnja grows. Using Smoky's leash, Teresa tracks down Alice and, on the border with Val Resia, they make a macabre discovery.