Armin Glaser, a lieutenant in the Stasi, lives with his wife Marie and daughter Kati in Karl-Marx-Stadt. They put their sick daughter in the care of Dr. Sigurd. But Armin becomes suspicious during the treatments. He uses his rank in the Stasi to obtain information. But the closer he gets to the truth, the more skeptical he becomes. He suspects that the GDR is allowing West German pharmaceutical companies to test drugs on East German clinic patients.