In the scene when Norma and Norman are in the basement, Norma tells Norman "we all go a little mad sometimes," which is a quote from the original film Psycho (1960).
The role of Emma's dad was recast in this episode. Will DeCody was originally played by Ian Hart before Andrew Howard took over the role.
This episode was originally titled "Peep Hole."
The song that Norma (Vera Farmiga) and her brother sing at the table is "Tonight You Belong to Me," which is featured in American Horror Story (2011) which stars Taissa Farmiga, Vera's sister.
This episode was watched by 1.69 million viewers.