Luna Ng is a columnist who gave her first boyfriend a vinyl record as a gift. She later discovers that same vinyl record in a second hand store so she attempts to buy it back. However, another person ends up buying it before her. She finds out that the new owner of the record is Cheung Yung, a radio host. Luna ends up both loving and detesting Yung after he comments on her love life on radio. The story is about the battle of two willful and creative characters.

Based on a true story, and recreated from the personal account of one of the robbers, the film follows an immigrant from mainland China in 1975 as he works with a team to plan to rob an armored car carrying seven million dollars from the Hang Seng Bank in Hong Kong.

The police forces are on a mission to stop gunrunners dealing between Hong Kong and mainland China. Leading them is Hong Kong Superintendent Lau Chen Fai along with officer Sophia and a Shenzhen cop Kau. Leading the gunrunners is Master Tian, Lin Lo Hung, daughter of a communist official, and Shaw Lon from Taiwan.