In the late 1990s, Bai Chunmei (Huang Lu), a college graduate who had just entered society, was eager to help her parents share the burden, but she could not find a suitable job. When she was worried, human traffickers disguised as employees of a pharmaceutical procurement company extended their warm hands to her. She followed them to a remote mountain village in northwest China to purchase Chinese medicine. As a result, she fell asleep on the bed after drinking a glass of water. After waking up, Bai Chunmei looked for her "pharmaceutical company colleague" everywhere. When she checked her ID card and wallet, she found that they had also disappeared. In an instant, she realized that she had been sold to the locals. After begging hard, Bai Chunmei realized that the only way to regain dignity and freedom was to escape. She began to escape again and again, and in the process, she gradually realized that the only person she could trust was herself.