The mooncakes distributed by the company didn't break, but the door lock broke instead. Chen Mo, an overworked office worker staying up late into the night, posted this absurd accident into the company group chat, unexpectedly uncovering layer upon layer of suspicious points behind the Mid-Autumn Festival welfare procurement. The message was requested to be recalled, performance evaluations were successively suppressed, and key evidence quietly disappeared. Facing pressure from supervisors and administrative buck-passing, he started investigating from a box of mooncakes, tracing the secret between procurement prices and actual settlements. A hard mooncake allowed the interests and silence covered up in the workplace to gradually surface.