Echo Killer

There is an echo of a serial killer in the city, who specifically targets women who live alone. After committing a crime, he will call the victim's family and say "I'm fine" in the victim's voice. Police found that the voiceprints of the calls matched the victim's, but the victim was already dead. As a voiceprint expert, Zhou Ye assisted in the investigation, but found that items that did not belong to him appeared in his home... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.