there was a man who kidnapped a woman and held her hostage but he had others he held hostage as well, he could do tests on their brains and kept them in cells
there was a man who kidnapped a woman and held her hostage but he had others he held hostage as well, he could do tests on their brains and kept them in cells
“Captivity”?
https://en.wikipedia.org/wiki/Captivity_(film)
How old? When did you see this?
Blood Sucking Freaks?