The story revolves around a group of people being terrorized by a group of clowns who seem to be teleporting into their house through a mysterious portal. The group discovers a box with balloons and a letter that suggests the clowns' lair is inside their house. They start to investigate and search for the portal, but the clowns keep appearing and disappearing, making it difficult for them to find a solution. As the group tries to uncover the truth, they become more and more desperate, and the situation becomes increasingly intense and frightening.
Here are the key facts extracted from the text:
1. A clown appears and brings a hand with him.
2. The clown takes off his face and it falls apart.
3. The clown fainted and smells bad.
4. The clown's entire body is rumbling.
5. A box with balloons and a letter is delivered to the house.
6. The letter is from the clowns, and it says "our lair is in your house".
7. The head of the clown leader is found in the box.
8. The group decides to search the house for the clowns' lair.
9. They find a secret passage in the hallway.
10. The clowns are able to teleport into the house through a portal.
11. The group hears strange noises and knocks coming from upstairs.
12. They find a room that they never entered before, and it has a light on.
13. The group finds signs of portals everywhere in the house.
14. They decide to leave the house because they don't feel safe.