Old TV series episode: starts off with a host talking and then goes into a mini-story
Two friends go to a party. One friend goes inside while the other waits in the car.
After a while the friend in the car decides to go find his friend and as he walks up to the house, some weird hobo guy scares him into the house where the party is going on.
He soon realizes its an 'eternity party' that no one can leave.
He finally escapes (somehow) and sees himself walking into the house again and tries to stop himself but just ends up scaring himself into the house.
It turns out that he was the weird hobo guy all along, creating a stable time loop.