Yang Tao, who was accustomed to the exquisite life in the city, returned to her hometown in the stuffy and isolated countryside with her husband Li Zheng. What greeted her was not only the suffocating heat wave and backward living environment, but also the oppressive scrutiny of her father-in-law Li Manshan. After three years of marriage without pregnancy, Yang Tao was ridiculed by her father-in-law as a poor land that was "not good for fertility", which made her feel even more humiliated.
However, facing the unabashed masculinity of her father-in-law, full of raw power, a secret trembling and throbbing quietly grew in the anger in Yang Tao's heart. On this hot summer night with the cicadas chirping, and separated by a thin yellow mud wall, Tao decided to fight back with an absurd "performance" full of revenge. She deliberately dominated her weak husband and used her unbridled voice to prove her "fertility" to the tough man across the wall.
In the intertwining of humiliation, provocation and out-of-control desires, the thin wall separating the father-in-law and his daughter-in-law becomes a stage for secret psychological warfare and power competition.
