The Prince Prospero finds out about the Red Death.
Climax
The Prince doesn't want to get sick so he devised a plan to solve that terror.
Falling Action
The plan that Prince Prospero created was to invite a bunch of rich friends to a masquerade in his castle, so that the would not be infected.
Conclusion
Guests are in rooms of different colors. They are located from east to west. Every hour a ebony clock rings interrupting the party.
A litlte before 12 am, a person appear who was not dressed according to the party. He looked like he were a victim of the plague. Prospero made the great mistake of approaching this shadowing figure, moments later he falls to his death.
After Prospero died, more people continued to die after realizing that under the guise, there was no one. In the Prospero's efforts were in vain. He made it easier for "death" to kill them all, since he gathered them in one place from which they had no escape.