Viewing alert: This is a rare chance to see a rarely seen great film. On Amazon is Rock Hudson's best film (partly because it's totally different than any other Rock Hudson movie), John Frankenheimer's Seconds. Sometimes thought of as the third of his "paranoia in America" series which began with The Manchurian Candidate and followed with Seven Days in May.
Seconds is guaranteed to snap your head off at least two or three times and keep you intrigued throughout. Another plus is the fantastic black and white photography by James Wong Howe.
It is best to know as little as possible going into the film so I recommend avoiding even reading the one sentence Amazon blurb. On a side note, this was one of my mother's favorite films.