"I heard that Leng Fei's parents found a lawyer for her."

A woman's voice.

Followed by a man's voice.

"His name is Zhao Hua, quite famous in the field."

"I really didn't expect Leng Fei to actually kill Xing Zhaoping. Intentional homicide... she probably won't escape death."

"It's just that Zhao Hua is a bit troublesome, I'm afraid she might find out about you."

"Me? I didn't do anything. It was Xing Zhaoping who replaced the medicine."

"Anyway, be careful. Tomorrow I'll follow Zhao Hua to see what she can find out. If..."

The voices of the two people stopped abruptly, and the sound of the evening breeze brushing through the treetops was exceptionally clear on the quiet night.

Early the next morning, I was awakened by a rapid ringing of the phone. I didn't even have time to see who it was before I answered it.

Until a familiar name was heard from the other side.

"Dou Dou, are you up?"

"Yuan Ming, not yet. What's up? Is there something wrong with the medicine?"

"My Dou Dou is still as smart as when we were kids."

"Get to the point."

Perhaps hearing the impatience in my voice, he said seriously, "I checked the medicine, and indeed, something was added to it."

"What? Is it harmful to people? Can it kill someone?"

"Dou Dou, don't worry. The medicine won't kill people, but because it was combined with a drug used to treat psychiatric disorders. Normal people taking it long-term will experience mental confusion, irritability, and anger."

So someone replaced Leng Fei's medicine. Could it be that sudden onset of illness caused her to mistakenly kill Xing Zhaoping?

Who replaced Leng Fei's medicine?

Now various signs indicate that this matter cannot be simply viewed as a murder case. If there really is some hidden truth, Leng Fei might...

Perhaps could be given a lighter sentence...