Blindfold (1966)

Dr. Bartholomew Snow, a psychiatrist, is treating a man with emotional problems who, it turns out, is a brilliant scientist being pursued by different international powers and their operatives. Snow soon finds himself caught in the middle and out of desperation, he falls in with a mysterious and beautiful woman named Vicky Vincenti. But is she helping him, or is she yet another sinister figure out to manipulate him?