CONCEITITY Ending Explained [SPOILER!]

SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!

SPOILERS AHEAD

CONCEITITY Plot Summary and Synopsis

A young man fighting depression falls into a surreal world of terror and anguish with his friend as their sanity is tested in this inescapable nightmare.

Source: Wikipedia (CC BY-SA 3.0).