Common Sense Note
Parents need to know that there is considerable violence and killing here. Splattery gore happens both in video clips from famous horror movies (which are praised as entertainment, over more wholesome movies like Annie) and in the "real" narrative. There are depictions of sex and male masturbation and brief glimpses of topless/pornographic magazines. A Catholic mass is ridiculed. The swearing gets really vile in places, and, like the violence, it's meant as a contrast to the tame-looking situation-comedy milieu.
Glimpse of nudie magazines and a topless woman on vintage exploitation video (to which a character masturbates). Mrs. Sutphin and her husband have loud sex (but stay clothed in sleepwear). References to pornography and perversion.
Characters are stabbed (one character's viscera comes off on the rapier), one run over by a car, others bashed to death, and one set on fire. Gory excerpts from slasher movies.
Beverly makes horrible obscene phone calls to the neighbor, heavy on the c-sucker word, later making the victim break down in a swearing fit herself. "A-hole," the S-word, and more. For what it's worth, this same Jekyll/Hyde heroine disapproves of using profanity.
As part of the satire Beverly is a "role model" American housewife to the utmost -- perfectly mannered and spotlessly domestic -- when she isn't a profanity-spewing, murderous, manipulative sexpot psycho. Her husband and kids (normal, except for a gore-movie-loving son) vow to unconditionally love her even if she is insane.
Mention of other movies, with favorable critiques for the adults-only horror movies Henry: Portrait of a Serial Killer and Blood Feast, negative ones about family-friendly fare like Annie and Bill Cosby. A joke about a Pee-wee Herman doll, shots of major department stores and breakfast cereals. Mention of clothing labels.
Drugs / Tobacco /
Reference to a character being a "pothead." Social drinking.