The Primroses Were Over

"They seemed almost themselves to anyone who didn't know them well, and you might spend half a day talking with one of them and never realize anything was wrong, until you found yourself taking up a knife and cutting off your own hand, putting out your own eyes, your own tongue, while they kept talking all the while, smiling, horrible."

Uh, okay, this just took a step into horrifying. Alright. I'm intrigued, book--carry on.