Martha Marcy May Marlene

Lucy: Why would you think it's okay to come in here like that?

Martha: I don't know. It's a big bed. You guys were on the other side.

Lucy: You can't come into our room when we're having sex. That's not normal. It's private.

Martha: Sorry.

Lucy: You don't need to apologize. Just - I need you to understand why it's not okay.

Martha: Okay.

Lucy: Do you?

Martha: Yeah.

Lucy: Well?

Martha: Because it's private and not normal.

Lucy: Oh, God.