You went on a blind date and presented an A-level wanted criminal as a meeting gift?

When Lin Chen's words, "The murderer used the victim's voice as the final weapon to kill," echoed in the empty theater, the whole world seemed to be muted.

Everyone present, whether seasoned criminal police officers or theater staff, felt their scalps tingle and the hairs on the back of their heads stand on end!

What a wicked thought!

What an ingenious calculation!

To let a singer die at the most glorious and brilliant moment, to die under the very voice she was most proud of!

This is no longer a simple murder; it is a cruel art form imbued with extreme humiliation and mockery!

"Quickly! Seal off the scene! No! Seal off the entire theater! No one is allowed to leave!"

Su Qingge was the first to recover from her shock. Her once dashing and beautiful face was now covered with frost, and her beautiful eyes were burning with raging anger.

She immediately issued a series of decisive orders to the officers around her.

"Technical Department! Get to the mechanical floor immediately and conduct a thorough investigation of that pulley system! Find that vibrator!"

"Information Technology Department! Immediately retrieve all the theater's surveillance footage from the past month! Especially the backstage and mechanical sections! Don't miss a single frame!"

"And you!"

Su Qingge's gaze, like an ice blade, shot towards Bai Yu, who was already ashen-faced and swaying precariously.

"From this moment forward, I will be in full charge of this case! You can get out!"

Bai Yu trembled all over, opened his mouth, but couldn't utter a single word.

He knew he was finished.

Having made two fatal misjudgments in major cases in a row, his title of "specially appointed expert" has become a complete joke.

Under Su Qingge's decisive command, all the police officers on the scene immediately sprang into action, and the atmosphere instantly became tense yet orderly.

Lin Chen walked over to Su Ke'er, who was still sobbing, and gently helped her up.

"Let's go to Professor Liu's rest room and help him sort through his belongings."

Lin Chen's voice regained its gentleness.

He knew that it would be too cruel for Su Ke'er to stay in this place filled with bloodshed and sorrow at this moment.

"Um……"

With red eyes, Su Ke'er nodded obediently, letting Lin Chen lead her by the hand through the busy crowd and towards the backstage dressing room.

Professor Liu's lounge was small and simple.

An old desk, a wardrobe, and a bookshelf filled with various sheet music and vinyl records—that's pretty much all the furnishings.

The air still carries a faint aroma of tea and the scent of old books.

As soon as Su Ke'er stepped inside, tears welled up in her eyes again.

As she sorted through the sheet music that her teacher treasured, she sobbed as she said to Lin Chen, "Brother Lin Chen, Teacher Liu... he dedicated his whole life to music. He was the kindest person, indifferent to fame and fortune, and lived a very simple life... How could he have offended anyone? How could someone use such cruel methods to harm him..."

Yes, how could a peaceful and unassuming old artist have such a deep-seated hatred with someone?

Lin Chen's brows furrowed tightly.

He didn't speak, but activated his [God-level Insight], his sharp gaze slowly sweeping across every corner of the lounge.

The teacup on the desk, the clothes in the closet, every speck of dust on the floor...

No detail, however small, escapes his notice.

Finally, his gaze settled on the cover of a seemingly ordinary classical music vinyl record on the bookshelf.

It was a record of Beethoven's Symphony No. 5, the cover of which was yellowed and looked quite old.

Everything seemed normal.

But Lin Chen keenly sensed that this album cover seemed to be a little newer than the others.

A thought struck him, and he stepped forward and took the record down.

He didn't look at the front of the Beethoven portrait, but instead turned the cover over.

His fingers gently, inch by inch, caressed the rough paper.

Suddenly, his fingertips felt a very faint, raised texture, different from the paper, in a very inconspicuous corner of the lower right corner of the cover.

His eyes instantly turned sharp!

"Qingge, can I borrow your tactical flashlight for a moment?"

Lin Chen said without turning his head.

Although Su Qingge, who had just followed, was confused, she immediately took the powerful flashlight from her waist and handed it over.

Lin Chen took the flashlight and pressed a special button on the side.

A beam of pale purple light, almost invisible to the naked eye, shone from the flashlight.

—Ultraviolet Exploration Mode!

When that beam of purple light shone on that inconspicuous corner on the back of the cover, a magical scene unfolded!

A lifelike pattern, about the size of a fingernail, suddenly appeared in a place that was originally empty!

It was a butterfly.

A butterfly, entirely blood red, with strange yet ornate patterns on its wings!

It seems to be drawn with the freshest blood, and under the ultraviolet light, it exudes an eerie and ominous glow, as if it is about to take flight from the paper at any moment!

"What is this?"

Su Qingge and Su Ke'er both came over and frowned when they saw the strange pattern.

Lin Chen did not answer.

His gaze became deeper and more solemn than ever before the moment he saw the blood-red butterfly!

His brain was working at lightning speed!

The vast memory database of the "god-level hacking skills" was instantly activated!

Countless secrets about the dark web and deep web have emerged like a tidal wave!

Finally, he found information that perfectly matched the pattern!

"Butterfly……"

Lin Chen's voice was terrifyingly deep, as if it came from the depths of the netherworld.

"This is the totem of an extremely dangerous and mysterious professional assassin organization within the Deep Web."

"They never solicit business openly; they only accept top-tier assassination commissions delivered through layers of encrypted channels. Every assassin in their organization is a genius proficient in various fields such as physics, chemistry, and psychology."

Lin Chen's gaze slowly fell on the blood butterfly, and he said, word by word:

"They never use conventional firearms or poisons, but are obsessed with using all sorts of unbelievable scientific principles to create a series of seamless 'perfect accidents'."

"In the sinful world of the deep web, they have a code name—"

"The Cleaner!"

"It seems that the big fish in the capital is much bigger than I imagined."