Lü Ban

Factory workers in 1947 repair a bridge over Song Hua River so that Communist forces can use it.

In 1948, after the Northeast was liberated, enemy sabotage began. The Public Security Bureau learned that spy Li Tianmin had infiltrated the city. Bureau chief and Captain Zhang quickly deployed personnel to capture him. Li Tianmin evaded key questions during interrogation. Clues were found on a milk bottle cap delivered by a boy, who passed it to another spy, Zhou Shaomei. Under surveillance, Zhou Shaomei, fearing Li Tianmin’s capture, killed the boy to erase evidence. Intelligence personnel mobilised the masses, pressuring the hidden enemies. Many deceived individuals provided clues, ensnaring the enemies in the people’s war.

Four students in Shanghai have recently finished university. All are unemployed. Xu contemplates suicide but his friend Zhao talks him out of it. Zhao lives in a shabby room with just a flimsy wall of planks separating him from the room behind. Miss Yang, in town to take a factory job, moves in behind. Her nails into the wall knock Zhao's photos down. The unseen neighbours start playing tit for tat... Zhao gets a job as proofreader at a newspaper. He sees that pretty girl on the tram to work every day. He doesn't know her, but it's Miss Yang... Zhao is assigned to cover labour conditions for the paper. He is sent to a factory, the one where Miss Yang works...

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