Collective film set during the campaign taking place in London to unionise women cleaners working the nightshift, who were employed under very precarious conditions. The Berwick Street Collective, interested from early on in making a film to support the campaign, decided to find new ways to politically represent the nature of the protest itself as well as the forces that were at work among the employees. Nightcleaners is considered an essential work in the experimental political film that gained strength in the socio-cultural context of 1970s Britain.