In a Stralsunder Bar's smoky backroom, Ludger Simon is found beaten to death with an iron bar after cigarette burn torture. * Simon had an Islamophobic blog and was active in the local violent Hooligan circles. The police soon finds indications those are planning a bombing, presumably at a Muslim target. A cop undercover as patient in the ward where psychotic presumed real leader Peter Marohn is in therapy proves in danger herself, Dr. Steiger being in league with him, and doubts arise about target and motive, while the cop colleagues rush to find and disarm the explosives.