For police officers Lena Enzweiler and Said Rahman Nasheed, a routine call turns into a puzzling situation when they encounter a silent and unresponsive man walking along the shoulder of a highway at night. They take him to the station to establish his identity and try to understand what happened to him. Meanwhile, detectives Thomas Schwarz and Nils Jung investigate a suspected case of domestic violence after finding blood traces in an apartment building. The investigation quickly becomes more mysterious as they follow the evidence through the building.

The show’s own verdict is on its page.