Murder of 18-year-old brings two investigators together for the first time. A piece of evidence leads to a missing person case four years ago. Investigations were led by Irene Gaup, with old and new questions arising.
| Actor | Role |
|---|---|
 Caroline PetersIrene Gaup | Irene Gaup |
 Natalia BelitskiJulia Jungklausen | Julia Jungklausen |
 Götz SchubertHans Gaup | Hans Gaup |
 Petra HartungWiebke Lohrmann | Wiebke Lohrmann |
 Karsten MielkeErnst Wiesner | Ernst Wiesner |
 Cino DjavidEde Koschinski | Ede Koschinski |
 Karoline EichhornGudrun Enzensberger | Gudrun Enzensberger |
 Marek HarloffKeanu | Keanu |
 Emilie NeumeisterEmma Lennartz | Emma Lennartz |
 Helmut MooshammerJoachim Helmholdt | Joachim Helmholdt |
 Kathrin WehlischYvonne Lennartz | Yvonne Lennartz |
 Ursula DollYvonne Lennartz | Yvonne Lennartz |
| LLuis HeutlingDag Enzensberger | Dag Enzensberger |
 Hendrik HeutmannKarl Roth | Karl Roth |
 Michael SchumacherJohann | Johann |