In Bethnal Green, a young man named Ricky Flint dreams of breaking free from a grim, working-class life. He works in a cigarette factory and shares a crowded terraced house with his family—his middle-aged parents, Matt Flint and Lil Flint, his pregnant sister Betsy and Betsy’s husband Jim. The pressure to improve their lot pushes Ricky toward a dangerous plan: to raise money by helping a local gangster, Jack Ellerman, rob the cigarette factory. Ricky even pulls Jim into the plot, hoping the scheme will unlock a better future for all of them.
Amid this tension, Ricky meets Catherine "Cat" Donovan Catherine "Cat" Donovan, who has been dating another gang member, Charlie Batey. Cat is rough-edged and fiercely independent, and she agrees to date Ricky and even share a night with him, but she refuses to be controlled or to stop seeing Charlie. Her stance leaves Ricky both attracted and unsettled, adding a volatile spark to the ensemble of loyalties, ambitions, and betrayals.
Meanwhile, Matt, a dockworker who longs for a more secure future, leaves the docks and tries his hand as a busker, performing an escape routine that hints at Houdini-like tricks. The old conflict with Ellerman—who has been more financially successful and who once competed for Lil’s affections—boils over. The sight of Ellerman and his gang at the Flints’ home drives Matt to a breaking point, and the stress triggers a fatal stroke that changes everything for the family.
On the night of the planned robbery, circumstances spiral. Jim decides at the last moment that he cannot participate in the crime, but Ricky takes Jim’s lorry without telling him and completes his own part by disabling the factory alarm. When Jack commands Ricky to stand guard with a lead pipe, Ricky hesitates to strike a nearby police officer who interrupts the plan; Charlie ends up knocking the officer out, and the heist falls apart. In a cruel twist of revenge, Charlie later burns Jim’s lorry, and Ricky is badly burned trying to extinguish the flames, ending up in the hospital.
Cat visits Ricky in the hospital, but she continues seeing Charlie, deepening the tension and loyalties that surround the Flints. Outside, slum clearance forces Lil to move from her long-held home into a new flat, a move that underscores the precariousness of every life tied to these streets. Jim and Betsy use the insurance money from the burned vehicle to buy a house of their own, a symbol of new stability, even as Betsy finds the new home a hollow substitute for what she had hoped for. Jim abandons his dream of driving a truck for a steady job in a local factory, choosing security over aspiration.
After Ricky is released from the hospital, he confronts Cat and finds her with Charlie at the pub, and a fight erupts. The police arrest both men, and in court Ricky testifies that he and Cat are engaged, explaining that his anger stemmed from her continuing to see Charlie while he was recovering. Cat corroborates his story, and the judge shows leniency, fining Ricky instead of harsher punishment. With the legal ordeal behind him, Ricky and Cat decide to pursue their engagement and build a life together, even as the shadows of the gang, the factory, and the old neighborhood linger in the background.
