Set against the raw beauty of rural Wales, A Knife in the Valley offers unprecedented access to Gareth Ward — the two-Michelin-star chef behind Ynyshir, one of the most daring and acclaimed restaurants in the world. Known for his relentless pursuit of excellence, Ward opens up for the first time about the addiction that drives him: a lifelong hunger to create, refine, and rebuild without ever feeling finished. Through strikingly intimate interviews and cinematic visuals, the film traces his unlikely journey from a boy in Newcastle who hated food to one of the most influential chefs of his generation. What begins as a story about cooking becomes a meditation on obsession, reinvention, and the cost of never being satisfied.