Inventor Richard Hammond goes blind and mentally unstable after lab accident. His family brings him to countryside home. Hammond suspects something suspicious about their motives and circumstances, building tension and mystery.

Businessman and inventor Richard Hammond is determined to develop and market the perfect light-bulb. In a freak lab accident he is blinded and suffers a partial breakdown. His wife, partner and brother take him to his country house, but then Hammond starts to suspect all is not what it seems.—Col Needham <[email protected]>