A rich Frisian farmer has been murdered in Amsterdam and police duo Grijpstra & De Gier are sent to investigate. Adjutant Grijpstra has problems at home again and is happy to leave for Friesland to investigate the murder. Sgt. De Gier finds the Frisian Hylke much more interesting than the murder case. In Leeuwarden there is a real Chinese war and a brutal robbery at the cattle market. Suddenly there is that friendly rattling, asthmatic rat who provides an unexpected solution.
At the end of WWII the Dutch resistance kills a German officer in front of the house of a Dutch family. Years after the war the young boy who witnessed the killing runs into the members of the resistance who committed the killing.
