Rainy Night, Flyover, Maybach

In Ancheng, at the Qingshan Psychiatric Hospital, a middle-aged man in a white coat stood by the window of his office, gazing at the dark sky outside as rain poured down.

Liu Qingsong had been working as a doctor at Qingshan Psychiatric Hospital for twenty-three years.

"Knock, knock, knock…" Sounds came from the door.

"Come in," Liu Qingsong said.

The office door, unlocked, was opened by a visitor.

"Director Liu," greeted a young doctor, dressed in a white coat, respectfully.

"What's the situation in Ward 314?" Liu Qingsong turned around, his brow furrowing.

He recognized the young intern responsible for monitoring Ward 314 that night. Ward 314 was a high-security area housing a father and son who had both lost their sanity. Their mental condition was highly unstable, often exhibiting tendencies of self-harm and aggression towards others, especially pronounced on rainy days.