Horror Express Presented by the JWK

HAPPY HALLOWAYNE! We conclude this season with a great classic starring two of the greatest horror legends of all time Christopher Lee and Peter Cushing! A scientist drags a frozen ape man on a train only for passangers to end up dying! What sort of evil forces are causing this death? Why are people being discovered with the brains whiped smooth and their memories all earased? Where did this ancient evil come from that haunts the Horror Express?