Flower of Evil literally means "flower of evil". It refers to a story in which certain flowers are regarded as evil because their appearance or inner attributes are contrary to what humans expect. This term is often used to describe some contradictory things or concepts, implying that their nature is not simply good or bad, but contrary to human values. In the movie, the "flower of evil" referred to a desire and desire that was suppressed deep in the heart. These desires and desires were suppressed and ignored during the growth process, and finally exploded in a specific environment, becoming the source of violent and twisted crazy behavior. The use of this word hinted at the pain and predicament experienced by the protagonist in the movie, as well as the experience of his/her innermost desires and desires being suppressed and ignored. At the same time, it also revealed the potential conflicts and contradictions in human nature.