The first thing I could think of was the story of the Eriksson twins succumbing to a shared delusion known as "folie à deux", trying to kill themselves by running into traffic on the M6 repeatedly, getting hit by speeding motors and still having the energy to assault officers while screaming bloody murder about having their organs harvested, being released from custody and murdering a man. Such a bizarre story and it left me puzzled and creeped out for days simply because so many things were unexplained and what was explained- "folie à deux" or temporary shared insanity, just seemed too convenient. The footage of them running into traffic and the behavior of the twins was incredibly unsettling for me. I remember reading some crazy theories about the twins being a result of genetic experimentation/mind control/super soldiers. Definitely out there.