Gestern war kein Tag.

A normal weekday. The chief inspectors Ivo Batic and Franz Leitmayr are called to the outskirts of Munich. Max Lasinger is waiting excitedly in a glass shop behind the front building, where he confesses he had seen light and wanted to catch a "burglar". When he attacked, he lashed out, but was it self-defense? And will his dementia make his confession untrustworthy?