Journeying through Glasgow, Sukhdev Sandhu goes on a personal quest to find the truth about a series of murders in the 1920s and 30s that have apparently been written out of Scottish history. Once described as the "second city of empire", Glasgow was home to a sizeable ethnic population but, as the race riots of 1919 showed, there was an underlying tension that led to some startling and disturbing events. Recorded on location at key sites in Glasgow.