This unnerving elevator surveillance tape, that records a young woman’s strange behaviour in an elevator, has been claimed by many to show proof of ghosts.
Why? Because it features the last few moments of Elisa Lam's life.
In the footage, Elisa's repeated attempts at pressing the lift buttons prove to be ineffective; it refuses to move, and the doors open and close apparently at random.
She can also be seen moving in and out of the lift, 'hiding' from someone outside it and chatting and gesturing with some seemingly 'invisible entity'.
Right after the events of the video, Elisa apparently gained access to the rooftop of the hotel, climbed to its water tank and, somehow, ended up drowning in it.
The rooftop was alarmed, the tank was 8-foot-high, and she managed to close the heavy lid after herself, despite the fact workers had to cut it open with tools to remove her body.
Many paranormal investigators have claimed that this - along with the frightening footage - proves that Elisa's death was caused by supernatural forces.