A man grows up in an ideal world, a sort of campus where everybody is promised that one day they'll graduate and go to "America". Then he discovers the truth, that "America" is where he and his fellow clones will be kept in cold storage until they're needed to be ripped asunder for the spare parts needed to infinitely prolong the lives of the privileged elite of America (one of whom is called George W).
Our hero escapes. But when he finds the truth...he wants to go back to his formerly "perfect" life, no matter what that involves. Jeepers, but these low-budget, paranoid seventies thrillers sometimes touched some real nerves. The movie has that lovely cold look often captured in genre movies of the time, and is made with considerable skill, despite having obviously been achieved for very small money.
Timothy Donnelly and Paulette Breen, as the hero and his girlfriend, are as bland as the heroes of any amount of coming of age stories from the late seventies. At the start, they'd fit neatly into "The Paper Chase" or some other going to college movie. And I think that's the whole point. Raised on promises that the good life can be theirs if only they behave themselves, they are completely helpless in the face of the "truth".
The recent "Moon" came to mind while I was watching this; another decent movie about a man who discovers the unhappy truth about his existence and tries to face down the implications. Both movies cop out a little at the end in pursuit of something sellable as a "happy" ending, "Moon" moreseo than "Clonus".