Eccentric Sidney Stratton (Alec Guiness) is a laboratory cleaner in a textile factory, who invents a material that will neither wear out nor become dirty. Initially hailed as a great discovery, Sidney's astonishing invention is suffocated by the management when they realise that if it never wears out, people will only ever have to purchase one suit of clothing.

Eccentric Sidney Stratton (Alec Guiness) is a laboratory cleaner in a textile factory, who invents a material that will neither wear out nor become dirty. Initially hailed as a great discovery, Sidney's astonishing invention is suffocated by the management when they realise that if it never wears out, people will only ever have to purchase one suit of clothing.