The body of a young woman is found on a riverbank. She recently gave birth to a child. Chief Inspector Zawieja and her colleague Trepa investigate.

When Strzelecki takes over the case, Zawieja defies orders as she follows the killer’s trail to a remote, war-torn island; while the threat of an accomplice looms large, Zawieja acts…

On the day of Magda’s funeral, Zawieja makes a desperate attempt to track down her elusive killer; at Goleniów prison, the interrogation of a notoriously dangerous inmate breeds new clues…

As the police search for Wróbel, one of the victim’s patients, Zawieja visits a prison in Goleniów, where he once served time; then, when the victim’s best friend is put…

Searching for new clues, Zawieja and Trepa visit a psychiatric hospital, where the victim once worked — and where they suspect one of the patients could have contributed to her…

The police investigation continues, with new leads and evidence. Police are investigating a possible link between the murder and the debts and business dealings of Marcin Kosiński, the victim’s husband.