File under Sacred Music takes as its starting point an infamous video that documents a live performance by The Cramps for the patients at Napa Mental Institute, California, on 13 June 1978. Captured on blurred and grainy black & white film, this unique social document has been swapping hands at record fairs and via the internet since the early 1980s. 25 years later, artists Iain Forsyth & Jane Pollard set about remaking the video of that show.