Sophie Fettèr, founder and heart of the Ludwigshafen Theater Babbeldasch, dies of an allergic shock during a performance. LKA investigator Johanna Stern takes over the investigation and has to clarify the question of whether Sophie may have been killed on purpose, while her colleague, Chief Inspector Odenthal, is supposed to be doing overtime. But Lena was in the theater for the crucial performance and uses the connection to go incognito behind the scenes - where she witnesses grief and dismay, old enmities and new hopes circulate among the theater people.
Sophie had always held everything together with charm and assertiveness. And even now she is involved, because she appears in Lena's dream and demands that she find her killer before everything falls apart. Things are bubbling up in the theater, Kopper is on vacation in Italy, Johanna is successfully collecting clues – and Lena is getting more and more into an in-between realm of investigation, stage and dream events.