Mist over Beijing is a virtual reality film that delves into the harsh reality of pollution in China's capital city.The story centres around Dr. Zhu, a renowned Chinese master of medicine who discovers he has lung cancer. In his journey to find answers, he reconnects with one of his former students, now a leading doctor at a local hospital. Together, they delve into the causes of his illness and unravel the connection between his deteriorating health and the severe pollution that has plagued Beijing for years.

As Dr. Zhu receives experimental cancer treatment from the United States, he contemplates the gravity of China's environmental crisis. Despite his limited time left, he engages in a profound dialogue with his son about the future and the impact of their actions. Inspired by his father's revelation, the son, a wealthy investor, decides to embark on a new path, dedicating himself to businesses promoting clean air and environmental sustainability.

Tragically, only six months after the filming, Dr. Zhu passes away. He is remembered as a courageous individual who risked his life to shed light on the pressing issue of pollution in Beijing.