There is a brand of wine called "Freakshow" in Sameul's (Colton Haynes) apartment when Kai (Evan Peters) is looking around. Freakshow is also the theme of the 4 season of the show.
Kai's house number is revealed as 1237 - 1+2+3+7 = 13. This is the number of witches in a coven - Coven was the title of a previous series of American Horror Story.