When Lu Zheng, the leader of the special case team, pushed open the rusty warehouse door, he had no idea that what was about to be revealed was a shocking secret that could subvert the security of the entire city.
Cybersecurity expert Lin Mo received a code from the deceased, which pointed to a crime early warning system that should not exist. What's even more disturbing is that the system shows that the next target is her.
He is good at measuring the truth with his steps, and she is used to using data to predict crises. Two completely different worlds were forced to collide, but they unexpectedly discovered that behind each case, they pointed to the same mysterious organization. The tentacles of this organization have already penetrated into every corner of the city.
Who is using the "Guardian" system to manipulate crime? Why does everyone close to the truth die unexpectedly? When trust becomes a luxury, when the closest person may also be a mole, the only thing they can rely on is each other.
"Heart Defense" - When the last line of defense is breached, who can you trust?
