A case that actually doesn't seem to be a case at all: A young doctor has cut her wrists - on her desk is the notice of termination of the clinic in Ludwigshafen, where she had worked until then. Everything points to suicide. But Lena Odenthal is not satisfied with these outward appearances. In the clinic, she notices discrepancies and the longer she deals with the case, the betterit becomes clearer that there are major problems in the clinic: the clinic suspects that a patient was infected with the HI virus during an operation. Everything indicates that Dr. Wegener found evidence of a contaminated blood bag and was willing to go public with it. This made her a threat to the blood plasma company Global Plasma and to the clinic.