In June 2009, after performing in London, American flautist Edwin Rist took a train to an outpost of the British Museum of Natural History. The Tring museum housed rare bird specimens worth staggering amounts to those who shared Edwin's obsession with the art of salmon fly-tying. Once inside he grabbed hundreds of bird skins, then escaped into the darkness. This is the gripping story of a bizarre and shocking crime, and one man's relentless pursuit of justice.