Inhail

Janus is a God that presides over duality, doorways and passages and is recognized as a God of two faces, it gives a description of what to expect in the phenomena SCP, which is the doors affected by this leads you to a passage with an inescapable choice between two doors, one is safe, the other is a gamble.
Glitch being that there is a malfunction in the space of the doorway distorted into leading you into this tiny pocket dimension.
It is a phenomena wherein certain doorways are affected by a peculiar wormhole. It has been observed that staring at these affected doors causes tunnel vision, a losing of peripherals causing an individual to focus on it, and a suggestive influence will beckon them to enter it. People can only encounter this phenomena alone and having other people around will revert the door to a normal state, but will activate once again if the condition is met. Once inside the person will find themselves in an empty void capable of being traversed due to the solid flooring you can stand on despite having nothing keeping them from falling. One will notice a complete lack of oxygen and severely low temperatures measuring at 0 up to -10 Celsius while inside the pocket dimension, your entrance at this point should have disappeared, preventing you from backtracking. In front of you lies two doorways seemingly suspended in the void, both are emitting a luminous glow similar to that of the moon amidst all the darkness, the one on your left is wide open and the one on your right is closed shut.

The left doorway based on what has been observed will always lead out into locations that are familiar to the individual that has entered, from the open doorway you will see a preview of exactly which familiar location has been made available. Instances shown by this doorway has been observed to always be affixed onto an already existing doorway, either leading to a room, to outside a building, etc.

The right doorway on the other hand has a more mysterious trend added onto it. It has the tendency to lead the individuals into unknown places. This usually varies from places around the world that the individual hasn't visited yet, to burning in the center of the sun, discovering new planets of unknown lifeforms, and even invading pocket dimensions of other SCPs and anomalies. Attempting to open the right doorway will lead to the closing and disappearance of the other, leaving you with no choice but to continue on. Instances made by this doorway have been observed to create doorways out of thin air in order to let you out, usually leaving an open doorway miraculously standing in the middle of nowhere, sometimes it's not even affixed to the ground.