Echo Well

A retired financial manager was found dead in his living room at Qi'an Apartment in Linjiang City. The door was locked from the inside, but surveillance showed that he returned to the sixteenth floor alone after the time of death presumed by the police. There were unknown indentations on the neck of the corpse, the soles of the shoes were dry, but there were traces of water on the socks, and white crystals that did not belong to the residence were stuck between the toes. After the deputy captain of the serious crime team Zhou Yu and the forensic doctor Shen Li intervened in the investigation, they discovered that the deceased was related to the Qinglan Correctional Center eleven years ago. The fire, which was classified as an accident, destroyed the lives of several minors and also burned a large number of key files. When the second person involved died in the garage, and the third deceased was "identified" from an abandoned factory, a murderer who was familiar with the police's case-handling procedures began to use the corpse, access control and edited recordings to rewrite an old case that no one wanted to face. Some people are killing, some are covering up, and some are seeking revenge in the name of justice. And Zhou Yu soon discovered that what really needed to be found out might not be just "who killed them", but who decided to silence those victims forever.