Ten year old Brian Thompson has been forced to stay at his Uncle's house with his mother and little sister. Cut off, deep in the countryside, the three of them live a miserable existence under the hostile eye of Mrs Vixen the housekeeper, while Uncle Julian remains aloof in his laboratory. Strange noises in the night begin to arouse Brian's curiousity. What he discovers threatens the security of everyone he loves and he must work alone to mend the dreadful aberration Uncle Julian has worked on the Laws of Nature.