Shen Zhiyan has been a filial daughter-in-law for twenty years, feeding and cleaning herself, and saving money on food and expenses, but what she got in return was her husband's cold eyes, her mother-in-law's control, and her daughter's alienation. It wasn't until her mother-in-law became speechless after a stroke, her daughter was about to fly away, and her mother's voice recorder quietly appeared - that she realized that her twenty years of "filial piety" were just a cage carefully designed by others. This time, she no longer bowed her head.