Abstract The long-awaited cold weather has arrived. Winter has changed the landscape of the city without people beyond recognition. Snow that no one removes, and it lies in an even layer undisturbed by people. With the icy cold that freezes everything around, now human activity does not warm the environment. Cannibals, animals, crazy people disappeared instantly, hiding in the few holes suitable to survive the cold. They huddled in dense crowds into the few rooms that were open for their access. Inside the wintering dens, a process began that happened randomly in the summer. Now there are excellent conditions for packs of cannibals to become larger, stronger and many times smarter. While the remaining people are trying to survive, take advantage of the period when they can extract a resource without much risk. Another predator went hunting, much more dangerous than the hidden madmen, cannibals, animals, since he hunted people long before the apocalypse.