Schock - The Quatermass Xperiment

In the countryside of London, a rocket crashes on a farm and Professor Bernard Quatermass (Brian Donlevy) and Scotland Yard Inspector Lomax (Jack Warner) arrive in the spot. The rocket was launched by Prof. Quatermass with the astronauts Victor Carroon (Richard Wordsworth), Greene and Reichebheim; however only Carroon is found very sick in the cabin. He is transported to a private clinic to stay under observation despite the protests of his wife Mrs. Judith Carroon (Margia Dean). She bribes a nurse to bring Carroon to her and she finds that he is transforming into a monster. Carroon escapes killing people and animals during his metamorphosis while the Scotland Yard is hunting him down and Dr. Quatermass discovers that his process is an alien invasion.

"The Quatermass Xperiment" is an early sci-fi from Hammer with a creepy alien invasion. Despite the low-budget, the screenplay is very well written and the film entertains, specially fans of sci-fi from the 50's. My vote is six.

Title (Brazil): "Terror que Mata" ("Terror that Kills")

Note: On 12 Dec 2019, I saw this film again.