Dr. Claudia Keller works in the research department of the global chemical company Beyler. The company has pinned all its hopes on the development of a revolutionary lifestyle drug called Defaminol. The slimming pill promises consumers easy weight loss. Shortly before the launch of the new miracle pill, Claudia begins to have doubts about possible side effects. She tries to convince management to hold back the drug, but no one listens to her. A nightmare of lies and loss of trust unfolds, and Claudia Keller must decide how far she is willing to go.