Lose yourself in absolute darkness, cradled in the watery womb of a sensory deprivation tank and find the secrets of the universe locked within your own mind. Unfortunately for Rex Ruso, a famous Hollywood producer, his time in the tank becomes a torturous exercise in physical pain and mental anguish when the lid on his tank refuses to open and no one is there to let him out.Existential Box is an approximately 7,000 word disturbing short story with adult content and language.