Perhaps I should elaborate. There's a scene in which the heroine's friend goes to a hospital and finds a tape made during a psychological observation. It's creepy, because the room is all white and bare, and Samara is sitting in the center with her dark hair hanging down mostly over her face, looking very alone in this oppressively clinical room. A doctor is asking her questions in voice over. I forget all the details, but at one point the voice says, "You don't want to hurt anyone, do you?" in an affirming way.

And this little girl, who looks like a helpless victim of adult paranoia and selfishness, replies in her soft but clear voice voice, "Yes, I do. I'm sorry." The message I took from it -- and from the rest of the film -- was that in some way Samara was fundamentally evil, and whatever it was that her parents did to get pregnant (the mother had been trying for years to conceive) let her into the world. The movie never tells us what she did to get pregnant, whether it was technology or some kind of pact.