A totalitarian world (2020s) where all humans are infertile and there are incentives for the infirm to commit suicide. Dissidents on the run, chases and hardship etc, but not as clichéd as that sounds. Gripping, chilling and (mostly) believable characters. The "science" is never really explained, so futuristic rather than sci fi? The film is very different, and not in a good way; fortunately I read the book first.