Scientists say that the instinct of self-preservation is the strongest among all instincts known to people. Does anyone doubt it?.. Yes, there are some! But all doubts disappear like water into sand when it comes to your own survival. And it is then that the realization comes of what kind of monster is hiding in a person. A cruel and bloodthirsty creature who will do anything to get her way. Sometimes such a creature completely squeezes out a person’s personality, replacing it with its own instincts. And sometimes... A person is still stronger than these very instincts. What will happen to the ordinary mechanic Sergei, who just went to the wrong place? (The metric and time scales are earthly, for the convenience of readers.) Contains obscene language.