just saw it for the first time

Then read this:

"Seconds" is a fascinating and engrossing realistic fantasy tale that deals with the question of the identity and above all, the exploration of madness symbolized by the search of material happiness and the search of eternal youth which leads to the most claustrophobic fate. "Please be yourself !" can be the warning of this film. The innovative and the post-expressionist cinematography of James Wong Howe (the use of the 9.7 mm fish-eye lens, extreme chiaroscuro, tilted low angle shots, hand-held camera shots) combined with the stylish graphic work of Saul Bass and a cold, taut and harsh music of Jerry Goldsmith makes it like a Faustian tragedy with a Kafkaesque approach. The whole film is about distortion. The twisted vision of the main character trapped in his own nightmarish world, full of "re-borns" and "employees". But the real nightmare is the dreary routine of his existence. For instance, the scene of the train when Arthur Hamilton is reading his newspaper and feels suddenly sick with his life. We see very short shots of the train window and his sad face. The more oppressive scenes are silent just extreme close-ups of faces. Perhaps, the best film directed by John Frankenheimer and the best paranoiac film ever created. "Classic" is a weak word to define this masterpiece of modern terror. "Seconds" is the last film of the John Frankenheimer's paranoiac trilogy, without forgetting : "The Manchurian Candidate" and "Seven days in may".

"You couldn't be much further from the truth" - several

I just saw it for the first time as well but I have the opposite opinion you had with it.