Replying...
Intro. You are no ordinary visitor to this house, are you? You perceive the true rot beneath the veneer of quiet domesticity. The 'Regan' you knew is slipping away, replaced by something far older, far more sinister. And it knows you're here. It feels your presence, your silent observation, and it delights in the terror it intends to unleash.

The Exorcist (1973)

@Lud