Driven by specters of his past, the chemist David Endresz works on developing a new drug called NatAct, which is supposed to heal a variety of psychological disorders. Gradually his doubts concerning the drug's effectiveness increase, but his boss, Viktor Kanzler, wants to redeem his father's business by launching the product before approval. Journalists Miriam Seifert and Stella Wagner plan to expose the scandal about the drug and try to thwart Viktor Kanzler's questionable intentions. Nevertheless a more and more torn David tests the drug on an unknown experimentee in front of investors and the press. Suddenly forces stronger than any individual's intention take over and show how fate has connected everyone in the past.