A man who works for 'The Party' (an all powerful empire led by a man known only as 'Big Brother') begins to have thoughts of rebellion and love for a fellow member. Together they look to help bring down the party.

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.

A man falls in love with a beautiful young woman and begins to suspect that he may have also loved her in a previous life.