In We Have Manners. We're Polite. (2014), Red mentions to Sister Ingalls that "before Dimitri, there was this man named Pavel. Even talking about him now... there's a tightening."
When a Stranger Calls (1979) is referenced when Leanne (Emma Myles) and Angie (Julie Lake) call the phone in one of the prison offices and Black Cindy (Adrienne C. Moore) replies, Angie asks if she checked the children and Cindy quickly realizes that it is a trot and says the children are dead and the black character is close to dying.
The Shining (1980) is referenced when Black Cindy (Adrienne C. Moore) walks alone down the aisles and sees Maritza (Diane Guerrero) and Flaca (Jackie Cruz) together in the dark.
Psycho (1960) is referenced when Piper (Taylor Schilling) and Alex (Laura Prepon) are caught in the bathroom by Piscatella (Brad William Henke) while they take a shower. Black Cindy (Adrienne C. Moore) is shaving herself in another bath and does not notice anything, only hears a noise that frightens her.
Friday the 13th (1980) is referenced when Blanca (Laura Gómez) is alone cleaning the floor and Piscatella (Brad William Henke) appears unexpectedly behind her and the two begin to fight.