Helsinki, June 1953, at the heart of the Cold War. Hella, now a reluctant private investigator, has been asked by her former boss at the Helsinki murder squad to do a background check on a member of the Finnish secret services. Not the type of job Hella was hoping for, but she accepts it on the condition that she is given access to the files concerning the roadside death of her father in 1942, at a time when Finland joined forces with Nazi Germany in its attack against the Soviet Union. German troops were sent to Finland, the Gestapo arrived in Helsinki and German influence on local government was strong, including demands for the deportation of local Jews. Colonel Mauzer, his wife and other family members were killed by a truck in a hit and run incident. An accident, file closed, they said. But not for Hella, whose unwelcome investigation leads to some who would prefer to see her stopped dead in her tracks.