Choir director Johanna Bischoff and her girls choir go to a concert in their hometown Hameln. Shortly before the scheduled performance disappear four of the girls and the organist David.Sie were on a hike in a cave of the Ith - the fabled mountain, in which 700 years ago the Pied Piper is said to have led the children. Seeking help, Johanna turns to her ex-boyfriend Jan Faber, head of the police station in Hameln.
| Actor | Role |
|---|---|
 Julia KoschitzJohanna Bischoff | Johanna Bischoff |
 Bjarne MädelJan Faber | Jan Faber |
 Matthias HabichDr. Georg Bischoff | Dr. Georg Bischoff |
 Ruth ReineckeDr. Charlotte Bischoff | Dr. Charlotte Bischoff |
 Hannes WegenerDavid Fernandez | David Fernandez |
 Luise BefortFranzi Meyer | Franzi Meyer |
 Lilli FichtnerIlka Peters | Ilka Peters |
 Camille DombrowskyLina Brennecke | Lina Brennecke |
 Zita AretzMarie Bellheim | Marie Bellheim |
 Charley Ann SchmutzlerMareike Tauber | Mareike Tauber |
| MMargot GödrösFrau Grupe | Frau Grupe |
 Jörg PoseHeinz Sewening | Heinz Sewening |
 Annedore KleistBeate Lange | Beate Lange |
 Stephan GrossmannCosta Albaretti | Costa Albaretti |