Chief Inspector "Struller" Struhlmann is at a loss. No one seems to be missing the unknown, attractive woman who was found murdered in a container on the banks of the Rhine in Düsseldorf. His former intern Jensen, who is supposed to be on vacation, is also busy. He is tasked with finding the fiancé of a Czech colleague who has not returned to his fiancée after a lengthy stroll through the old town. When the two investigators stumble upon each other during their inquiries in a strip club, it becomes clear that both cases might be connected. Together, they embark on a fast-paced, thrilling chase for the murderer through Düsseldorf's red-light district, upscale tennis clubs, wild striptease parties, exclusive beauty salons, to Grandma Jensen's in Herongen, and all the way to distant Prague.