When Kati Pohler was three days old she was left at a market in China. She was later adopted by an American family.
When she was 20, Kati discovered her birth parents had left her a note, and that every year on the same day, they waited for her on a famous bridge in Hangzhou.
Watch the full documentary, Meet Me On The Bridge.
Filmed and directed by Changfu Chang.
Adults Only sponsored: