In a scene outside the Wheeler house, Junior talks to Tiffany Valentine (Jennifer Tilly) saying that he knows her and she replies "aren't you a little young to have seen Bound", a movie from 1996 in which Jennifer played the role of Violet.
The letters of the killer doll's name were comprised of headstones. Going a step further, each one was emblazoned with the name of a Chucky victim -- not just from the show but also the Child's Play movies. They included Sarah Pierce, Grace Poole, Eddie Caputo, and even Redman.
Chucky and Tiffany moved into their new Chicago apartment, it was revealed to be numbered 237. This was a clear nod to Stanley Kubrick's The Shining (1980) within which Room 237 was particularly infamous at the Overlook Hotel.
The ending of the episode confirmed the theory that multiple killer dolls had been lurking in Hackensack. An army of Chucky dolls had originally been part of the plan for Child's Play 3 (1991). Unfortunately, budget restraints meant it couldn't come to fruition.
The flashbacks depicted young Charles Lee Ray (Fiona Dourif) and Tiffany Valentine (Blaise Crocker) settling in Chicago. As such, it brought things closer than ever to the events of the original Child's Play movie, which was of course set in and around that city