77 year old Gisela Stein is found unconscious in her house. Beside her lies her carer, Sven Franke. As Martina Seiffert and Anna Badosi arrive at the scene, they meet Ingrid Majowski, a neighbour and friend of Gisela Stein. She called the police when Gisela did not appear to play their daily game of cards.

Source: ZDF press release