A professional killer, Svetlana Demyanova, goes to Kaliningrad to piece together—bit by bit—the events from seven years ago. Back then she was ordered to eliminate Colonel Nazarov, the “mole” from the Foreign Intelligence Service, but she failed: Nazarov managed to escape. Svetlana’s “disgrace” was almost forgotten, and Nazarov also tried not to be remembered—until one fine day it turned out that the traitorous colonel, fleeing, had taken with him super-secret documents from a closed archive. Only he couldn’t smuggle the papers abroad—he hid them somewhere in the city. Svetlana’s task is to find the cache of documents, and she has only six days to do it…