|St. Louis, Missouri|
|Filming location :||TBA|
A homeless Shapeshifter living in the sewers of St. Louis went on a killing spree; mimicking men, and then torturing their lovers and framing these men. The Shapeshifter mimicked Zach Warren and slashed Emily to death, then later imitated Alex and tortured his partner Lindsey.
When Sam and Dean Winchester came to St. Louis to investigate, the Shapeshifter mimicked Dean and planned to kill Sam and Rebecca Warren. However, Dean was ultimately able to shoot and kill the Shifter when the Monster was attempting to murder Sam.