Marina Kapov, a police station cleaner with sharp analytical skills, uncovers clues pointing to a third person in the death of Ana Tokić, challenging the initial assumptions of the investigation.

Marina joins the police team as a consultant, clashing with detective Ramljak while investigating Marko Katić’s suspicious death and confronting secrets tied to her missing ex-partner from fifteen years ago.

Marina and Detective Ramljak take over the investigation into the disappearance of young girls Mija and Tea following the murder of their father. While the clues lead toward family conflicts, custody battles, and business secrets, the police attempt to uncover what truly happened and find the girls before it is too late. The investigation reveals an increasingly complex web of lies, threats, and hidden motives.