A voluptuous woman (Scarlett Johannson) drives through the streets of Glasgow and lures single men with the promise of stimulation and instead giving oblivion. She is an alien temptress, and these men become the life source for her and the black, featureless beings of her kin. But soon her prey becomes her fascination, her voyeurism luring her into the human world.
It is reminiscent of 2001: A Space Odyssey with its minimal dialogue and cinematic artifice. But where 2001 gained its detachment through the grandeur of the cosmos, Under the skin utilizes the minuscule and the mundane: the crawling of insects, the ambiance of everyday life, the bubbles of humanity in crowded cities. Trading the communion of her void for the anonymity of our world, the temptress becomes prey to discovery, fear, and isolation. Very unsettling.