Leung Chi Wo + Sara Wong, ‘Office Lady With A Red Umbrella’, 2010, Blindspot Gallery

An imaginative investigation through staged photography, He was lost yesterday and we found him today is a series of 28 self portraits in which Leung and Wong re-enact anonymous figures picked out from images in archival materials such as old magazines, newspaper, pamphlets, souvenir books and other documents that they have been collecting over the years.