An underrated sci-fi thriller, based on the novel by Frank M Robinson. Set in a research institute, the plot concerns the hunt for a mysterious, murderous super-brain who is evidently one of the scientists. The investigation, led by Hamilton, whose mind becomes increasingly tampered with by his quarry's power, takes him through a cross-section of contemporary America in search of the killer's past. More than once the film seemingly goes off at a tangent, only to return chillingly to the matter at hand: as when a woman kisses one of the researchers during a party into which the film has become sidetracked, only to discover that he's dead. George Pal's special effects are excellent, and Hamilton's performance is surprisingly good.
Cast and crew
George Hamilton Suzanne Pleshette Michael Rennie Nehemiah Persoff Earl Holliman Arthur O'Connell Aldo Ray Barbara Nichols Yvonne De Carlo Richard Carlson Gary Merrill