That buzz you hear in the air is the return of the inventive carnage first masterminded by serial killer Jigsaw (Tobin Bell), whose legacy of brain-teasing punishments continues. Escaping one of the maniac's sick devices, FBI agent Peter Strahm (Scott Patterson) turns a suspicious eye towards another survivor of Jigsaw's traps, police officer Mark Hoffman (Costas Mandylor). Betsy Russell, Julie Benz co-star. 94 min. Standard; Soundtracks: English Dolby Digital 5.1, Dolby Digital stereo; Subtitles: English, Spanish; theatrical trailer.