Episode Description: Beware, spoilers! To read - hover over the text.
The brothers Winchester are investigating the theft of blondes, living in the same house, which is an evil Ghost of a serial killer. Joe, having escaped from the house, joins the Winchesters and accidentally gets trapped Ghost. When Ellen finds out that Joe gave his life to the Winchesters, then he gets all angry and tells something of the dark past of their father, something Sam and Dean didn't even know existed.