Somewhere in central California, there is an old apartment building that 75 years ago housed an insane asylum. On the 2nd floor, the building is said to have a time portal. After midnight, one must walk the 2nd floor hallway 12 times in succession. The portal leads 75 years into the past, to the nightmare of the old asylum. This video documents the experiment to locate the portal, and shows the 12th walk-through. 

The filmmaker becomes agitated, and heard on the soundtrack anxious to leave the zone of altered time. At the opposite end of the hallway, he apparently locates the exit. You decide.

(This is a fictitious video, everyone, not meant to be taken seriously. Just an experiment in minimalist filmmaking. No CGI.)