I am dying to find out more about a movie I remember seeing on TV in the 1970s. (and the film was probably from the 60s even.)
English speaking, colour film and almost certainly American made.
People are being killed by a virus (maybe) that crystallises their blood turing it into red sand. I don’t remember if the people themselves become piles of sand I might have filled that gap in myself.
Ultimately our Scientist hero saves the day when he observes that a terrified chimpanzee is unaffected when exposed and theorises that adrenaline is what is needed to save the day.
I hope I’ve remembered enough correctly for someone to tell me what this movie is. It was a long time ago and I only ever saw it once on TV.