Late one night, a prostitute was brutally killed. The murderer's methods were cruel and relentless. It is strange that after the murder, the killer put a half-moon-shaped strange decoration on the body of the deceased. The killer didn't seem to stop, and more and more women seemed to be his targets, until Julia and her husband, who narrowly escaped the clutches, began to investigate, and all the victims had a common connection, seven names, seven women, seven red orchids, who is the true face of the killer? The crowd in Italy.