This is an excellent horror film about a radioactive blob of mud from the inner earth that comes to the surface and wrecks havoc. Dean Jagger is Prof. Royston, a man who tries to stop the ever growing terror.
Hammer Films produced this gem which takes place in Scotland, and it have a very effective use of music and some of the scenes are quite effective. There are several scenes of people melting from getting too close to the creature, and these are well done.
The story slowly builds to a great climax in which the scientists try and stop the monster when it again comes up for a bite. the ending is an open one that clearly leaves it open for a sequel that never happened.
I wish I knew somebody that had the ability to record this and put it on a disc for me, but I will just have to make due for the time being. If you haven't already seen this film, you should. A fine production from Hammer.