The Quatermass Xperiment

"This Hammer Production stars Richard Wordsworth as a tortured astronaut who has just survived an exploration mission in space, with two other astronauts that seem to have succumbed to a disease from an unknown planet or universe. The lone astronaut, without ever speaking to anyone again, tries to assimilate back into society, but cannot help but be pulled by a strange compulsion to consume...the suspense grew at a steady pace, and the story also took a sinister turn. Most of the actors were good, and even after the big reveal, the movie was still fun to watch. "

"One of the best of the genre."