British silent clown Walter Forde tries to strengthen his resolve after his feisty 'modern' girlfriend makes demands that he should economise. Staring into a lightbulb as he attempts to instil himself with renewed backbone, he accidentally hypnotises himself - becoming a strange, invisible, spectral visitor on the production line at the Osram light bulb factory. Despite Forde's invasive mingling with the employees on the factory floor, all remain resolutely stony-faced throughout the comedian's voyeuristic visit. Not once does anybody accidentally crack a smile.