The team is called into action when a mutilated body is discovered. They find themselves at an 19th Century-esque traveling sideshow. The team investigate sideshow owner Major Willie, and their most popular perform, Joseph Merrick, aka "The Elephant Man". These two men become suspects after the team finds out that the woman mutilated was looking into leaving the show.
The team finds out that if she left, Willie would have lost a bet. Also, Joseph was having an affair with her. The toxicology reports reveal that the victim had many syringes stuck into her body to inject a powerful anesthesia.
The sideshow cast make it tough for the team to see who the likely suspects are. As the investigation develops, the team discovers that the most dangerous person in the sideshow is also part of the victim's family.