make by the same planet film and director fisher who produce the superior island of terror the previous year and this sci fi or horror effort contain a very similar plot line . the main difference be that the creature threaten the islander be not man make product of science go mad and but invade alien from out space . the first half of the picture be a match for island of terror and building a suspense around the unknown . it perhaps a bit too slow and with christopher lee do a lot of walk about and set up some kind of experiment . he also some rare genius i never figure out how he deduce the whole alien invasion theory no one else be aware of it . peter cushing have a small role a a local doctor ( he also star in island of terror ) . many of the early scene have potential victim hear a strange whirring noise in the countryside and sometimes a a prelude to death . the death scene usually consist of an over exposure in the photography and wipe the picture clear with bright light . this be a little less horrible than the death scene in island of terror . like island of terror and much of the picture be during daytime and though there be some effective night scene ( when not mistakenly photograph during day ) . in the 2nd half and the story deteriorates and and the end be an abrupt deus ex machina courtesy of nature and unlike the desperate gamble pay off in island of terror . one minute everything seem lose and the next minute it the end and problem solve . very abrupt .