If you loved how Invasion of the Body Snatchers builds dread as townsfolk are quietly replaced, you'll be gripped by The Stepford Wives, where Joanna Eberhart suspects that the women in her seemingly perfect suburb are being transformed—yet no one believes her. Both novels masterfully evoke the terror of losing your community to something inhuman hiding in plain sight.

If you enjoyed Miles Bennell's frantic attempts to save his town from the pod people, you'll love They Live (originally published as "Eight O'Clock in the Morning"). Here, protagonist George Nada discovers that society is secretly controlled by aliens and must act quickly before he loses his own mind. The pulse-pounding pace and mounting urgency will keep you hooked.

If the chilling concept of people being replaced by emotionless duplicates fascinated you, The Midwich Cuckoos offers a similarly uncanny invasion: after a mysterious event, the women of Midwich give birth to eerily perfect, telepathic children who aren't quite human. The creeping horror of the community's transformation will feel hauntingly familiar.

If you were drawn to Invasion of the Body Snatchers for its depiction of a society slowly succumbing to conformity and paranoia, you'll find Fahrenheit 451 just as compelling. Follow Guy Montag as he awakens to the oppressive forces in his world—a place where books are banned, and independent thought is dangerous. The social critique and dystopian tension echo Finney's chilling themes.

If the subtle menace of trusted friends and neighbors turning into something alien drew you in, The Manchurian Candidate delivers a similarly paranoid thrill. Raymond Shaw is an American war hero—or is he? As his friend uncovers a communist plot involving brainwashing and betrayal, you'll find the same tense uncertainty about who can truly be trusted.