You're cast as a villain, and you're supposed to teach the police how to solve cases?

Ren Haifeng arrived at the police station quickly.

She thought there had been some major breakthrough, so she asked as soon as she came in.

"Officer, have you caught the murderer?"

Team Leader Zhao stared at her coldly, his gaze sharp.

Ren Haifeng was stunned. Why did it feel like she was being interrogated?

"Officer, has something happened?" Ren Haifeng asked anxiously.

"Ren Haifeng!" Captain Zhao suddenly raised his voice and asked sternly.

Where were you on the night of March 26th?

Ren Haifeng was so frightened that her body trembled, and it took her two seconds to react.

"Officers, you're not suspecting me, are you?"

"We are asking you questions, please cooperate!" Team Leader Zhao's expression was grave.

Ren Haifeng looked at Captain Zhao with some fear.

"No, why would you doubt me?"

"Answer my question! Where were you on the night of March 26th, the night Chen Sanfu was murdered? Who can testify to that?" Captain Zhao's tone rose again.

"Didn't I already say that I'm at my parents' house, so I didn't come back?" Ren Haifeng replied, her voice trembling with tears.

What are you doing between 9 PM and 11 PM?

"Huh? At night, I..." Ren Haifeng scratched her head. "I should have been asleep by then. My mother isn't feeling well, so I chatted with her for a while until she fell asleep, and then I went to sleep too."

"You didn't come out at all?" Captain Zhao continued to ask.

"Huh?" Ren Haifeng asked in surprise, "Why did you come out when you were sleeping?"

"Why do you ask?" Captain Zhao's tone grew colder. "To kill your husband, Chen Sanfu."

Upon hearing this, Ren Haifeng was so frightened that she stood up abruptly, waving her hands frantically, her face deathly pale.

"Officer, I didn't kill him! Why would I kill my husband? You've got the wrong person."

"Really?" Captain Zhao calmly pulled out a photo, tapped it, and...

Do you know this person?

Team Leader Zhao produced a photo of Meng Yang's uncle, Liu Fugui.

Upon seeing the photo, Ren Haifeng's expression became somewhat subtle, and she murmured,

"I know him. He's Liu Fugui, my husband's colleague."

Team Leader Zhao narrowed his eyes, staring at Ren Haifeng.

"You just know each other? Do I need to explain your relationship?"

Ren Haifeng glanced at Captain Zhao in surprise, her expression filled with doubt and uncertainty.

After a moment, she bit her lip.

"We're not really related, we just know each other."

Seeing that Ren Haifeng was unwilling to talk, Team Leader Zhao went straight to the point.

"Did your husband, Chen Sanfu, engage in wife-swapping with Liu Fugui, resulting in you having a relationship with Liu Fugui?"

Upon hearing Zhao's direct words, Ren Haifeng closed her eyes in anguish, slumped into a chair, and two lines of tears streamed down her face.

Sigh, she's a pitiful person too.

Yeah, what woman wants to engage in wife-swapping? It's all you men who like to mess around.

[Come on, I know people like that. Lots of women say they don't want to, but when it comes to actually doing it, they're really into it.]

[And what about mask parties? People these days are really just too well-fed.]

Alright, alright, let's stop going off-topic and get back to the case. It's pitiful, but killing someone still means going to jail.

Yes, you could only say she was unlucky in love, running into a scumbag like Qin Wei.

[Qin Wei's stand-in: That's a character I played, not me. Don't criticize me.]

...

Team Leader Zhao watched Ren Haifeng quietly.

She broke down emotionally, which is good.

"Ren Haifeng, tell me, is it because Chen Sanfu sent you to be exchanged for a wife that you harbored resentment and secretly went back from your parents' home to kill him?"

Ren Haifeng slowly shook her head, looking at Captain Zhao with humiliation.

"No, I hate him, but I didn't kill him. Also, it wasn't my choice; I was drugged. I'm not that kind of woman."

"I don't care what kind of woman you are, you say you didn't kill him, but who can prove that to you?"

"No one is there." Ren Haifeng's tone hardened. "However, there are surveillance cameras in my hometown village. You can check them."

Team Leader Zhao snorted coldly.

"We checked, no need for you to remind us, and we didn't capture you on camera. But don't think we don't know that you swam across the river, killed your husband, and then came back, right?"

I've looked at the map of your hometown village. If you go to the river, the surveillance cameras won't be able to capture it at all.

"Furthermore, we've investigated; your family sells fish, and your fish-killing technique is quite good. Killing Chen Sanfu with a single blow would have been no problem at all."

I originally thought that if I revealed Ren Haifeng's methods of committing crimes, she would panic.

Unexpectedly, Ren Haifeng looked completely bewildered. She pointed to herself.

"Officer, are you saying I'll swim back to kill someone and then swim back?"

"Yes!" Captain Zhao said confidently, "We found traces of you coming ashore on the riverbank in Jinsha Village."

Ren Haifeng suddenly laughed, looking at Captain Zhao with a mocking expression.

"Officer, I can't swim at all. You're saying I swam there to kill someone? Why don't you just say I flew there myself?"

Upon hearing this, Captain Zhao was completely stunned.

"That's impossible! You live by the river, and your family sells fish. You can't possibly not know how to swim, can you?"

Ren Haifeng was speechless.

"Officer, I just live by the river. There's no rule that says living by the river means you have to swim. I nearly drowned when I was a kid, so I've never dared to go into the water since. You can ask around in the village and you'll see."

Seeing Ren Haifeng's confident demeanor, Captain Zhao got up with some doubt and went to ask her.

These kinds of things are usually impossible to hide. After asking around at Ren Haifeng's family home and Jinsha Village, the truth was pretty clear.

When Ren Haifeng was a child, she went swimming in the river with the villagers and almost drowned. After that, she became afraid of water, a fact confirmed by people in Jinsha Village.

If the murderer really swam across the water, then Ren Haifeng is definitely not the murderer.

Team Leader Zhao had no choice but to release Ren Haifeng.

I never expected that someone couldn't swim.

[Sometimes solving cases is like this: everything seems to fit, but the crucial condition doesn't. I've watched many criminal investigations, and the most common scenario is that a suspect is caught, only to find out the suspect is left-handed, which doesn't match the killer's characteristics.]

Does that mean Ren Haifeng is just a minor character, not a hidden figure?

[I told you it was Yang Lin, but you wouldn't believe me.]

...

With Ren Haifeng released, that connection is broken, and they have to change direction.

Soon, Xiao Song thought of Yang Lin.

"Captain Zhao, do you remember Xiao Rou's case? Xiao Rou committed suicide after becoming pregnant. Is it possible that she was also deceived by Chen Sanfu and then jumped off a building out of shame?"

Old Wu: "Yang Lin has been investigating the cause of his daughter's death. If it really was Chen Sanfu who did it, and he finds out, he might actually kill Chen Sanfu in a fit of anger."

Also, I heard he's working in the school's boiler room now, the kind you've all been to. As long as you add coal beforehand, nobody bothers him at all."

Team Leader Zhao has no other options but to call Yang Lin over and ask him for advice.