The famous movie Midnight Express was originally a book inspired by the real life of his author.
One of the significant moment happens in the psychiatric hospital. After advancing further into a kind of cave, the narrator is witness of a scene worthy H.P. Lovecraft, or Ernesto Sabato - "Héros et Tombes". A procession of insane prisonners are walking slowly all day long around a large pillar of stone. All of them are turning in the same flow direction, but the narrator which does the inverse.