In his dreams Sammy is a rock star. But in reality he works and cleans in his brother Momo's hammam. Suddenly, a music label gives him the chance to become famous in a casting show. On one condition: The solo musician must form a band. So Sammy, his sister Jessi, the old temporary masseur Wolle and fat Mahmut quickly become the group "Hamam Hardrock". The audience celebrates the original newcomers but label boss Thomaschewsky wants to prevent the multicultural rockers' triumphant advance by any means necessary.
A young woman (Alexandra Neldel) begins to work collecting emergency calls when get one that puts she on the trail of a serial murderer who, for some strange reason, she intends to become involved in the case. Furthermore yet another teenager has been kidnapped. Police do not know where to start, but it surely depend to find the victim alive.