Down The Spiral - A Generation Loss au

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When an overly eager Showfall intern named Finn sneaks through the building and stumbles onto the set of Spirit of the Cabin just as Ranboo and Charlie are running through it (ep 2), he's roped into a dark story involving the company he loves dearly and his favorite show, Generation Loss.
Overjoyed that he gets to meet his idols, but still hunted by Showfall, the three go on an unfolding journey down an increasingly black series of twisting hallways underneath the building called The Spiral. Each of them receives some "tampering" from the corporation, including strange new appendages and mind-bending powers.
Can they make it to the bottom of the spiral and escape?
Or will it represent their spiral into madness, too?