A skeleton found at the demolition of a Berlin common 'Schrebergartenkolonie' dates from 1944. Benjamin Kuttner's brilliant research shows Henrik Mertens and Stoll the way to identify it as Gustav Krohn, a decorated resistance member, who helped people -notably Jews- escape Nazi persecution to flee abroad, but was killed, without recorded trace. He belonged to a shady tiny resistance cell, must of whose members were caught and executed by the Gestapo. Entrepreneur Jochen Maibeck wealthy son of one of two survivors, is reluctant to give the team any access to the wartime diaries. His own son Patrick starts doubting when informed that besides successes, several escape route clients have been extorted and/or betrayed to the Nazis.
—KGF Vissers