Kei (Simon Yam) is your experienced leader of a team of pick-pockets -- also known as"Sparrows" in HK slang. He enjoys a carefree life style. 1 day a sexual attractiveness, Chun-Lei (Kelly Lin), unexpectedly appears in Kei's view finder. Kei is mesmerized. But behind the attractive facade of Chun-Lei lies a mystical past and a mission to set herself free.