The Stone Tape - 1972 - 5/10

The old castle provides the new location for the research laboratory.
One room, however, well … it’s haunted. Screaming, sightings.
Anyone with common sense might go, “OK, close this off and leave it alone.”
These are lab coats, mind you, so they drag their gear inside and begin investigating.
Dawdling narrative, elements of Horror and clunky science.
Looks cheap. Actors strive their best, but they deserved a sharper script.
This was a real theory, by the way = https://en.wikipedia.org/wiki/Stone_Tape_theory