Marion, also known as Nippelsuse, leaves her boyfriend and has to find new accommodation as well as a job. She decides to become a private detective. She immediately gets a case to follow someone's unfaithful girlfriend.
| Actor | Role |
|---|---|
 Beatrice ManowskiMarion Niplowski [Nippelsuse] | Marion Niplowski [Nippelsuse] |
 Erdal YıldızBulle | Bulle |
 Axel PapeLouis | Louis |
 Martina SchiesserKarin Semmelrogge | Karin Semmelrogge |
 Robert Viktor MinichMicky | Micky |
 Lars PapeBodybuilder | Bodybuilder |
 Barbara PhilippAnn Katrin | Ann Katrin |
 Peter HorkayDJ | DJ |
| NNeal WachNils | Nils |
| JJürgen GörlitzDr. Jürgen | Dr. Jürgen |
| IIstván HorkayHausmeister | Hausmeister |
| AAlexander FialskiNils Sohn | Nils Sohn |
| AAndrea SchemppRita | Rita |