Blutschnee

Biologist Valerie Lemke dies after a visit to a glacier. Dr. Hartmann quickly determines that she was pushed into the abyss. Jerry and Sophia investigate among her colleagues. Dr. Magda Hansen was a rival for Professor Gruber's affections, while Christian Wenzel was an environmental activist and a jilted lover. Even pharmaceutical manager Oliver Gross falls under suspicion because Lemke's research on blood algae was commercially lucrative.