October 31 (S01E05)

On Halloween night, Kristen and David are sent to assess an exorcism, but once the pair analyzes the situation, they are at odds while trying to determine whether it is a supernatural demonic possession, or severe mental disease escalated by physical and mental distress. Also, Ben goes on his favorite show, Demon Hunters, where he debunks their supernatural finds with fellow unbeliever Vanessa (Nicole Shalhoub). (CBS TV Network)