Speed ​​Limit 30

Bai Bing, a female high-speed rail driver who grew up in her adoptive father's home, suffers from mental illness. With the blessing of drugs for a long time, she occasionally experiences hallucinations. On this day, the train she drove escorted three fugitives. When the train was approaching the end, the fugitives escaped from the police's control by accident, forcing Bai Bing to reduce the speed to less than 30. After the mysterious deaths of his relatives one after another, Bai Bing began to wonder whether he was living in a hallucination or in a fishing net set by others...