Did you sometimes get the feeling that Laura was harboring some awful and terrible secret? A secret bad enough that she wanted to die because of it? Bad enough that it drove her to consciously find people’s weaknesses and prey on them, tempt them, break them down, make them do terrible, degrading things? Laura wanted to corrupt people, because that’s how she felt about herself.
Jacoby to Bobby Briggs in Twin Peaks, episode 6.