Xtro  (1983)

Theatrical Release Information:
Xtro

For those with a taste for the repugnant comes this gory blood-and-guts fest that tells the horrific story of a British fellow who gets kidnapped by aliens and three years later is returned carrying infectious spores that have transformed him into a kind of crab thingy that causes all kinds of perverse sexual and violent mayhem. ~ Sandra Brennan, All Movie Guide