On January 20, 1942, the Wannsee Conference takes place in Berlin, a meeting that had only one item on the agenda: The Final Solution, the organization of the systematic mass murder of eleven million European Jews.
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.
A love connection clicks for Lila when she moves back to Berlin and meets Christopher -- never realizing that she's fallen for a rock star who's signed a contract to remain single for life.
Strange events happen in a small village in the north of Germany during the years just before World War I, which seem to be ritual punishment. The abused and suppressed children of the villagers seem to be at the heart of this mystery.