On the day of his scheduled execution, a convicted serial killer gets a psychiatric evaluation during which he claims he is a demon, and further claims that before their time is over, the psychiatrist will commit three murders of his own.
By day, Mari and her friends broadcast their spiritual devotion through pastel pinks and catchy evangelical songs about purity and perfection, and by night they form a vigilante girl gang, prowling the streets in search of sinners who have deviated from the rightful path. After an attack goes wrong, leaving Mari scarred and unemployed, her views of community, religion, and her peers begin to shift.