Ian Gill’s first visit to Hong Kong in 1975 takes an unexpected turn when he meets his Chinese mother Billie’s friends, colleagues and fellow ex-prisoners of war, lifting the veil on a tumultuous past in Hong Kong and Shanghai.

He moves to Asia and unravels her intriguing journey: from controversial adoption by an English postmaster in Changsha to popular radio broadcaster in wartime Shanghai, from tragedy and a doomed romance in a Japanese internment camp to being decorated by Queen Elizabeth ...