Chinatown's prominent Wong and Ling families, embroiled in a violent Tong War for decades, agree to end hostilities after young lovers from the respective clans become engaged. When a priceless jade necklace - the Wongs' peace offering - is stolen by a clever thief named Zamboni, the Lings are blamed and the truce is called off. Newspaper reporters Bob Martin and Ann Parker suspect third-party interference and begin an investigation, on
