The entire world is suffering from a horrible virus! People who catch this disease become monsters – the virus mutates and turns them into blood-thirsty and aggressive creatures that strive to infect and kill all the survivors. It seems like the situtaions becomes worse – the monsters overwhelm city streets already. And the place they appear is an infection hospital. You are unlucky enough to start your journey right from this hospital, so the first wave of monsters will attack you. You will collide with them in the corridors, so try to survive. Also, you need to find and save the survivors and stop the spread of a disease as fast as you can.