- [reading a note from the killer]
- Mrs. Doctor Graves: It says, "It's Halloween, it's prom night, there's a psycho loose, so don't open the door, don't answer the phone, don't look in the attic, don't go to the bathroom, don't go into the ocean, and don't go into space 'cause no one can hear you scream. Signed, A Friend."
- Mrs. Doctor Graves: Poor Daddy's been under such a strain recently.
- Mary Graves: If you ask me, he's acting like he just killed someone.
- Mrs. Doctor Graves: Mary! Your father's a doctor... He kills people every day.
- Prom Chaperone: I can't allow you to leave. You're either going out for drugs or drink. It's against the rules.
- Rosie: It's okay. We're just having some kinky sex.
- Prom Chaperone: Oh, alright.
- George Kennedy: I'm sorry, what were you saying?
- Dick Harbinger: It's about your daughter.
- Mrs. Doctor Graves: What about her?
- Dick Harbinger: I don't know how to tell you this, so I'll have to be blunt. Pam's been murdered. And the other daughter, Mary, she saw the whole thing. She's bound to be screwed up by the terrible images she must carry with her for the rest of her life.
- [first lines]
- Lawnmower killer: Death to all teenagers who fuck.