No Tanzmariechen could get past her. And Elke Schetter has also clashed with club president Günter Kowatsch: now the strict dance trainer of the carnival club "De Jecke Aape" has been murdered. And that just a few days before the start of the new carnival session. A disaster! During their investigations, inspectors Freddy Schenk and Max Ballauf quickly find out that things have been anything but cheerful at "De Jecke Aape" recently. There is fierce competition between the two dancers Saskia Unger and Annika Lobinger for the position of first dance mariechen. And just two months ago, young Evelyn, a very talented member of the dance group, took her own life. She had been bullied by the other girls.
Nevertheless, the carnival club still plays a very important role in the life of Evelyn's family, especially for her father Rainer Pösel. Against the will of his wife Martina, he seeks a confrontation with club president Günter Kowatsch. The eleventh eleventh is just around the corner – Evelyn would have turned 17 that day.