Ambulance doc Philipp Haase is traumatized when a clown masked youth kidnaps him and leaves in the ambulance, leaving him tied to a metal fence in the marina. Diabetic physics student Paul Neuhaus's overprotective mother reports him sassing from his dorm, where pictures of wearing such scary masks pale besides his dropping out from college. A stolen limousine with caged cat is the next prank crime, each posted anonymously in Internet as a Gotcha game. Paul is brought into hospital with an insulin crisis, there must be at least one other culprit. The team looks into his roommates too.
—KGF Vissers