A detective proves that a Robin Hood-type crook did not steal a metal formula.

Four doctors face a serious dilemma when the beautiful wife of a TB-stricken artist begs one of them to cure her brilliant, but amoral, husband.

Professor Bernard Quatermass of the British Experimental Rocket Group is sought to examine strange meteorite showers. His investigations lead to his uncovering a conspiracy involving alien infiltration at the highest levels of the British Government. As even some of Quatermass's closest colleagues fall victim to the alien influence, he is forced to use his own unsafe rocket prototype, which recently caused a nuclear disaster at an Australian testing range, to prevent the aliens from taking over mankind.