One girl drowned in the Drava in Osijek, she is very young and no one knows who she is. Police Inspector Kovac is trying to find out if it was an accident or she was killed. Local journalist Stribor is also interested in the case.

A third girl is found dead in Osijek. In Kyiv, Olga and Nikolay search for Viktor, a sleazy photographer who might know where Katya is.

A psychiatrist from the Osijek hospital has doubts about chief suspect Kozul's guilt. The police have to release him because of their lack of proof and his partial alibi.

Olga returns to Kyiv to discover the truth about her niece. The police investigation shifts focus to a close associate of Olga's husband.

Vesna and Vladimir find out about two of the victims' criminal and reform-school pasts. Who removed their files and fingerprints from the police database?

The investigation reaches its horrifying conclusion. Olga, Vladimir, Vesna and Stribor's lives will never be the same again.