A strong investigative team on the hunt for a murderer just outside Hamburg. Spring in Lauenburg - the rapeseed is in full bloom, and a body is found floating in the lake of an exclusive hockey club. Shortly thereafter, a dead man is discovered in a hunting stand. The investigating detectives take some time to realize that these seemingly unrelated cases trace back to the time of the German division: What happened at the border back then has bloody consequences that reach into the present...