Nu Jigsaw en zijn kompaan Amanda dood zijn, lijkt het spel afgelopen. Maar als een nieuw videobandje van Jigsaw opduikt, blijkt het spel nog lang niet aan zijn eind te zijn. Twee FBI-profilers proberen de hele puzzel op te lossen en speuren door Jigsaws overgebleven spullen. Maar als een SWAT-lid ontvoerd wordt en onderdeel van het spel blijkt krijgt hij negentig minuten om, behalve zijn eigen leven, het leven van een oude vriend te redden.
Nee, helaas is Saw IV nog niet beschikbaar op Netflix in Nederland.
| Directing | Darren Lynn Bousman | Director |
| Writing | Patrick Melton | Screenplay |
| Writing | Marcus Dunstan | Screenplay |
| Production | Oren Koules | Producer |
| Production | Mark Burg | Producer |
| Production | Daniel J. Heffner | Executive Producer |
| Production | James Wan | Executive Producer |
| Production | Stacey Testro | Executive Producer |
| Production | Peter Block | Executive Producer |
| Production | Jason Constantine | Executive Producer |
| Camera | David A. Armstrong | Director of Photography |
| Editing | Brett Sullivan | Editor |
| Sound | Charlie Clouser | Original Music Composer |
| Costume & Make-Up | Alex Kavanagh | Costume Design |
| Production | Gregg Hoffman | Producer |
| Editing | Kevin Greutert | Editor |
| Production | Leigh Whannell | Executive Producer |
| Production | Jane Rogers | Extras Casting |
| Crew | Shawn Stewart | Stunt Double |
| Crew | Billy Oliver | Stunt Double |
| Crew | Neil Davison | Stunt Double |
| Crew | Marco Bianco | Stunt Double |
| Production | Stephanie Gorin | Casting |
| Art | David Hackl | Production Design |
| Art | Anthony Ianni | Art Direction |
| Art | Liesl Deslauriers | Set Decoration |
| Writing | Patrick Melton | Story |
| Writing | Marcus Dunstan | Story |
| Writing | Thomas Fenton | Story |
| Costume & Make-Up | Stephanie Ingram | Key Hair Stylist |
| Costume & Make-Up | Candice Ornstein | Key Makeup Artist |
| Costume & Make-Up | François Dagenais | Prosthetic Makeup Artist |
| Directing | Elizabeth Scherberger | First Assistant Director |
| Art | Jamie Burke | Construction Coordinator |
| Art | James R. Murray | Property Master |
| Sound | John Laing | ADR Editor |
| Sound | Jason Hopfner | Boom Operator |
| Sound | Allan Fung | Dialogue Editor |
| Sound | Steve Baine | Foley |
| Sound | Tom Bjelic | Sound Effects Editor |
| Sound | Keith Elliott | Sound Re-Recording Mixer |
| Sound | Andrew Tay | Sound Re-Recording Mixer |
| Sound | Mark Zsifkovits | Sound Re-Recording Mixer |
| Sound | Mark Gingras | Supervising Sound Editor |
| Sound | John Douglas Smith | Supervising Sound Editor |
| Crew | Warren Appleby | Special Effects Coordinator |
| Visual Effects | Peter Denomme | Visual Effects Producer |
| Visual Effects | Jon Campfens | Visual Effects Supervisor |
| Visual Effects | Voytek Kufner | Animation |
| Lighting | Christopher Takacs | Best Boy Electrician |
| Camera | Brian Gedge | Camera Operator |
| Camera | James Jeffery | Camera Operator |
| Camera | Thomas Care | Dolly Grip |
| Lighting | Richard Berube | Electrician |
| Lighting | Sean Dawes | Electrician |
| Lighting | Stephen Myers | Electrician |
| Lighting | Philip Charles Whitfield | Electrician |
| Lighting | Ira Cohen | Gaffer |
| Camera | Kevin LeBlanc | First Assistant Camera |
| Camera | Ernest Spiteri | First Assistant Camera |
| Camera | Monty Montgomerie | Key Grip |
| Lighting | Robert DaPrato | Rigging Grip |
| Lighting | Tracy Shaw | Rigging Grip |
| Lighting | Pete Daprato | Rigging Grip |
| Camera | Steve Wilkie | Still Photographer |
| Costume & Make-Up | Stephanie Lees | Assistant Costume Designer |
| Costume & Make-Up | Ciara Brennan | Costume Coordinator |
| Directing | Elizabeth Tremblay | Script Supervisor |
| Sound | Paul Intson | Music Editor |
| Sound | Jonathan McHugh | Music Supervisor |
| Sound | Jonathan Scott Miller | Music Supervisor |
| Sound | Jonathan Platt | Music Supervisor |
| Editing | Tavia Charlton | Digital Intermediate |
| Editing | Nick Iannelli | Digital Intermediate |
| Editing | Trevor Lewis | Digital Intermediate |
| Editing | Chris MacKenzie | Digital Intermediate |
| Editing | Dave Muscat | Digital Intermediate |
| Editing | Nick Paulozza | Digital Intermediate |
| Editing | Tom Mayclim | Negative Cutter |
| Writing | Leigh Whannell | Characters |
| Writing | James Wan | Characters |
| Directing | Joel Hay | Second Assistant Director |
| Production | Greg Copeland | Co-Producer |
| Production | Greg Copeland | Production Manager |
| Production | Troy Begnaud | Associate Producer |
| Crew | Alison Reid | Stunt Coordinator |
