Still reeling from her husband’s death, Detective Katarzyna Zawieja launches an investigation into a murder of a young woman and her missing newborn.

Zawieja investigates the links between the murder and the suspicious debts and business dealings of the victim’s husband Kosiński.

As the police launch a search for Wróbel, one of the victim’s patients, Zawieja visits the prison where he once served time.

The day of Magda’s funeral leads Zawieja on a dangerous chase for her killer, but an interrogation with an inmate at Goleniów prison breeds new clues – and increased suspicions.

While Strzelecki takes charge of the case, a dangerous trip to a remote island brings Zawieja closer than ever to the truth.