Joseph Losey and Leslie Norman direct Dean Jagger, Leo McKern and Edward Chapman  in this early Hammer production where scientists and the army try to figure out exactly what form a murderous, radiation chomping monster is taking. 

The relatively unique opening hour which essentially has the structure of a mosaic, as various unassociated people are attacked by “the unknown”, followed by a thrilling enough grand finale where the survivors try to blow a roaming blob up before it devours Inverness make this worth watching (if you are forgiving and enthusiastic for this type of bunkum). It was all done better in The Blob or Quatermass, in fact, it proves no real surprise to find the first draft of the script was intended as a sequel to Nigel Kneale’s classier take on the boffin versus the uncanny tropes represented here.

5