On the same day, the police in Jianchuan contacted Su Zipei. They had found new clues in the case of the fire of the house of the Mu family.
After so long, why were they still investigating the case? Wasn't the case closed already?
But, Su Zipei and Mu Qiqi went to the police station anyway.
Apparently, the police had captured a thug group. They specialized in helping people to do dirty jobs with payment. When they were investigating a group fight, a man called Cheng Qiang confessed that he had received money from the Mu family and took the key to enter the villa.
In the villa, he did two things. The first thing he did was to ignite the wall. The next thing he did was to lock all the doors of all the rooms from the outside.
"Who hired you? You better confess now!"