Set against the winding coastlines of Port Talbot and Swansea, the Lewis family saga centers on two brothers living in a caravan with their parents and sister Adie (portrayed by Rachel Scorgie). The elder brother is Jeremy Lewis (portrayed by Rhys Ifans); together with his sibling, he spends his days joking around, dabbling in drugs, and stealing cars, all while poking fun at Adie and her job at a local massage parlour. The backdrop is a working-class world where pride often collides with trouble, and the boundary between mischief and violence becomes dangerously thin.
Their father, Fatty Lewis (portrayed by Huw Ceredig), is injured when he falls from a ladder while roofing for Bryn Cartwright, a wealthy local businessman and small-time gangster. Laying blame, the twins press for workers’ compensation, but Bryn maintains that the arrangement was cash-based and illegal, refusing the request. This quarrel seeds a personal vendetta that will pull many lives into a destructive spiral. Bryn Cartwright (portrayed by William Thomas) becomes a central figure of retaliation, not content to let the matter slide.
The feud escalates quickly: the twins crash a local karaoke contest in which Bryn’s daughter Bonny Cartwright (portrayed by Jenny Evans) is singing, and in a cruel act from backstage they urinate on her. The humiliation hardens Bryn’s resolve, and he enlists the aid of two corrupt police officers—Greyo (portrayed by Dorien Thomas) and Terry Walsh (portrayed by Dougray Scott)—to help settle the score. Despite their initial efforts to disrupt the twins’ life, the plan appears to gain traction when one of the detectives helps Bryn rough them up in a back street, signaling a much more dangerous game.
What follows is a brutal cycle of retaliation. The Lewis brothers break into Bryn’s property and even behead the Cartwrights’ pet poodle, a vicious act that drives the conflict further toward tragedy. In response, Terry sets fire to the Lewis’ dog kennel, the flames engulfing their beloved animal and shattering any sense of safety. A gas bottle explosion near the scene compounds the disaster, destroying the Lewises’ mobile home and claiming the lives of the twins’ family, a moment that leaves the surviving brothers reeling and furious.
Grief and rage push the brothers toward a morbid, public reckoning. They arrange with the local male voice choir to stage a funeral procession for their father, and in a chilling act they hijack their father’s hearse at the ceremony. The atmosphere grows heavier as Terry, terrified and bound to the coffin, is lowered into the sea off Mumbles Pier, a grim tableau watched by a crowd and a choir that seems to carry on as if nothing has changed. The twins, unmoved by the ritual they are enforcing, bet on how long the coffin will float, their emotions eclipsed by a cold calculation about their future.
The scene draws to a close with the coffin sinking beneath the waves, and a quiet, uneasy tear or two among the brothers as they contemplate what they have done and where they are headed. The final image is stark: the boat carrying the coffin drifts away from the pier, the two brothers steering toward an uncertain horizon, the Welsh choir continuing to sing on Mumbles Pier as if nothing could stop the haunting truth of their choice. The closing note hints at a future beyond the shore—perhaps toward a distant Morocco—echoing the sense that some wounds never fully heal, only travel with you across the sea.
