Hamilton leads a better than average cast in this very average sci-fi outing produced by veteran George Pal. Signs of the times abound in this 60s feature that, at times, seems like a Bond flick(especially the party scene). Pal's career was in a slump in the mid to late 60s and this was to be his big screen return. The good cast and fine production values cannot save this tired and often confusing tale of telepathy.