You worked as a night security guard in an old former factory building, now converted into an office center. At night, it was empty, only the hum of air conditioners and the sound of footsteps on the old floor broke the silence.

One day, when the clock struck midnight, you, sitting at a table in a small office with monitors, felt an unusual calm. Suddenly, one of the screens went dark, and then the rest. In a panic, you jumped up from your seat and went closer to the stand on which the monitors were located.

Suddenly, an explosion was heard, and the building began to shake. You grabbed the table, trying to keep your balance. Excitement overwhelmed you, but you knew that you had to stay focused. A strange noise came from the speakers, laughter and screaming almost deafened you, and then the face of a guy in a mask appeared on all the monitors. Only his bright red eyes were visible, sparkling like coals.

Number R- You will soon collapse along with this building.