A supernatural skeptic sets off to debunk paranormal sightings using low frequency sound waves in an abandoned subway station and is met with unforeseen evil and eerie memories.A supernatural skeptic sets off to debunk paranormal sightings using low frequency sound waves in an abandoned subway station and is met with unforeseen evil and eerie memories.A supernatural skeptic sets off to debunk paranormal sightings using low frequency sound waves in an abandoned subway station and is met with unforeseen evil and eerie memories.