A separate screenplay by Nigel Kneale for theaters, parallel to the 1979 Quatermass four part mini-series. The story set in the near future involves influences from outer space that are possessing people. Professor Quatermass must save his granddaughter from the clutches of a popular and sinister cult "Planet People" that "performs raptures".
|John Mills||-||Prof. Bernard Quatermass|
|Simon MacCorkindale||-||Joe Kapp|
|Barbara Kellerman||-||Clare Kapp|
|Margaret Tyzack||-||Annie Morgan|