Medical student Paula wins a place at an exclusive Heidelberg medical school. When the body of a young man she met on the train turns up on her dissection table, she begins to investigate the mysterious circumstances surrounding his death.
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.
Mimi has her hands full. Her son Felix is hyperactive, her ex-husband Johnny is a mess, her father is a chronic gambler. Then Felix signs her up for a Swiss casting show, because Mimi wanted to be a musician originally. So Mimi decides to head for Switzerland, since it could pay all their debts. But then the whole family wants to come...
