When a group of good ol' boy loggers return from the woods missing one of their group, foul play is suspected. Nobody wants to believe their tale of watching their buddy get abducted by an alien space ship. Days later the missing man reappears naked and injured and eventually recounts his experience through a vivid flashback. FIRE IN THE SKY (1993) which is based on actual accounts (!), is more of an investigative thriller than anything else. Its small scale, dialogue driven nature though, may mislead you into thinking that it doesn't also house one of the most trauma inducing scenes ever filmed (don't believe me, check out these unsolicited testimonials HERE.)
If you are an adult it's scary, if you are a kid it's super scary and if you are a survivor of alien abduction, well, then it's just plain unwatchable….
NOTE: More scary aliens HERE!