In a bold experiment to address pay inequality, the boss of a prominent London plumbing company challenges his workforce to openly disclose their salaries to one another. As the employees grapple with the shock of discovering significant pay gaps for identical roles, the company faces a tense period of internal friction and difficult conversations. The film captures the raw, human reactions of staff members as they navigate the complexities of workplace transparency, revealing the deep-seated tensions and personal struggles that arise when the veil of secrecy is lifted.