Killer:Caroline Grills, born Caroline Mickelson (1890 – October 1960), Grills became a suspect in 1947 after the deaths of four family members: her 87-year-old stepmother Christine Mickelson; relatives by marriage Angelina Thomas and John Lundberg; and sister in law Mary Anne Mickelson. Authorities tested tea she had given to two additional family members (Christine Downey and John Downey) on 13 April 1953, and detected the poison thallium.
It's 1956 and Bernie Gunther is on the run. Ordered by Erich Mielke, deputy head of the East German Stasi, to murder Bernie's former lover by thallium poisoning, he finds his conscience is stronger than his desire not to be murdered in turn. Now he must stay one step ahead of Mielke's retribution.