Pi Kappa Sigma (Black Christmas)

Pi Kappa Sigma was an American sorority of the 20th century. A chapter in Bedford was the site of a series of murders perpetrated by the unidentified serial killer known as "Billy".
== Appearances ==
* Black Christmas (first and final appearance)
== See also ==
* Delta Alpha Kappa
== References ==
Category:Sororities
Category:Buildings
Category:American buildings
Category:Locations
Category:American locations
Category:North American locations
Category:Film locations
Category:Sites of mass murder