One mystery leads to another when DNA from the body of a recently murdered woman is traced to a man who's been dead for months. Guilt weighs on Alba.

After Alba finds a young man's body in a banged-up car, Carlo spots a familiar name among the victim's belongings. Malik reconsiders Carta's request.

A case involving a young female rapper strikes a nerve for Repola and forces Muzo to work alongside his estranged wife. Alba's boss offers her advice.