This episode features Special Agent Fox Mulder and Dana Skully investigating bizarre murders that are committed without an entering being broken. Fox Mulder continues to be made fun of for his belief, and when he turned out to be right, I believe Skully believed more in the paranormal than she ever has before.
On the other hand, this episode featured one of Skullys old friends, who was trying to get Skully to quit the X-Files department and come to Violent Crimes. Skully considers this at first, but when she is surprised by what Mulder finds out, she decides to stay in the X-Files. Overall, this episode was very special and a great edition to the first season of The X-Files.