this film be an insult to the intelligence of the viewer . the plot be that this police department have an investigator who be an expert of teeth . so he call out on a case where a bunch of teeth be leave on a silver platter . soon we be enmesh in a movie where a bunch of creepy kid be involve in a plot to bring about the apocolypse by mangle the scripture . okay and here the plot twist . ziyi zhang ( who be a 30 year old play a teen . ) give herself up in the murder of her adoptive mother . now and oddly and this police department apparently have a dental expert and but doesn not have the computer expert or psychological expert to pick this girl life apart and figure out who her associate be and include the son of the lead detective . now and i be sorry and if you be a detective and you have to be pretty poor at your job to not realize that your kid be seriously mess up . yet he hasn not be in the kid room in three year . come on . no cop in the world be that dense . you just do not understand police mentality . policeman tend to be overly suspicious of everyone they encounter . that the point .