Around the mid 1600s, a disease known as "Red Death" had killed 1/2 of the population and was spreading fast
Prince Prospero, a happy and carefree gentleman had taken 1000 people to the palace and locked them in, to ensure they were safe.
While inside they noticed they had evreything they needed for a party and with that they started to party.
The palace contained 7 rooms each room had their own distinct color ranging from purple, violet, to red, and to green. The seventh room however contained black curtains and red windows which resemblenced the look of blood.
At around midnight, a masked figure enters wearing graveyard clothes with blood splotches on them. everyone is frightened as they get against the walls to stay as far back as possible
Prince Prospero orders the people to grab and unmask the figure but no one would. Angry, Prospero runs after the figure with a knife and a few seconds later he screams and is dead. The people having noticed their prince was dead all gathered around the masked figure and took of its mask and there was no face. One by one they all started dying, dropping like flies.