Fiend Without a Face (1958)
People are found dead with their faces frozen into horrified grimaces.
The examiner discovers that their brains and spinal cords have been sucked out through small holes in the backs of their necks.
When attacks start happening on screen, you discover that what is killing these people is ... (gasp) ... INVISIBLE!
Yes, who hasn't had that nightmare about being attacked by an invisible flying brain with anntenae?
And who hasn't had that nightmare about being an actor asked to portray someone being attacked by an invisible flying brain with anntenae?
Late in the movie, someone figures out how to make the monsters visible, and that's when the fun shifts into high gear. Brains (with the spines attached) perch in bushes waiting for their victims. Brains leap through the air and wrap their spines around their victims' throats, rubbery anntenae waving in the air.
Available in an edition from the Criterion Collection. The cheapest prices you'll ever find on any Criterion DVDs are at DVD Planet. Seriously. Or you can always rent it from Netflix or your local video store (if they carry Criterion discs).
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