1941. Hong Kong is under Japanese occupation. The anti-Japanese Dongjiang guerilla unit is tasked with rescuing cultural figures and extracting them from the besieged city. Primary school teacher, Fang Lan and her mother are trying to live out this difficult period in a small run-down flat in Wanchai. After the schools are shut down, Lan unwittingly finds herself involved in the guerillas' mission to save novelist Mao Dun. In the process, she meets Blackie Lau, the intrepid sharpshooter captain of the guerillas' Urban and Firearms unit. Taking notice of Lan's calm, smart nature, Blackie recruits her to join the guerillas. Worried for her daughter's safety, Lan's mother volunteers to take Lan's place as a courier, only to be arrested on the job. To save her mother, Lan is forced to turn to Wing, who now works for the Japanese.
A man lives in a lovely apartment with his wife and daughter. He is obsessed with cleanliness, has strange dreams and struggles with a mystery from his past. In search of his long-lost brother, he visits a building complex in a poor part of town, taking his wife and daughter along. While he is looking for clues, his wife outside finds their daughter is missing. A stranger wearing a dark motorcycle helmet appears, frightening her. As the story unfolds, this stranger keeps popping up, becoming ever more threatening. Written by Marion Marino