Camellia Blooming

Every crime must leave traces, but this serial murder case is very special. Apart from a sprig of camellia placed at the scene of each crime, there are no clues. Even the materialistic detectives began to suspect that the murderer was a ghost, mocking their incompetence. It wasn't until a school violence death case was mentioned again that things started to turn around, and the truth hidden behind Camellia was finally slowly revealed...