Based on an unrealized film script written in 1964 for The Homosexual Law Reform Society, a British organization that campaigned for the decriminalization of homosexual relations between men, The Colour of His Hair merges drama and documentary in an impressionistic meditation on queer life outside the law. The script tells of John and Peter, a young professional couple living in London who are the victims of a blackmail scam. Documentary footage, news clippings, archival films, and oral history recordings are woven around this central drama.