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.
| Production | Daniel J. Heffner | Executive Producer |
| Production | James Wan | Executive Producer |
| Production | Mark Burg | Producer |
| Sound | Charlie Clouser | Original Music Composer |
| Editing | Kevin Greutert | Editor |
| Production | Oren Koules | Producer |
| Production | Leigh Whannell | Executive Producer |
| Costume & Make-Up | Alex Kavanagh | Costume Design |
| Production | Jason Constantine | Executive Producer |
| Camera | David A. Armstrong | Director of Photography |
| Writing | Marcus Dunstan | Screenplay |
| Editing | Brett Sullivan | Editor |
| Production | Gregg Hoffman | Producer |
| Directing | Darren Lynn Bousman | Director |
| Production | Stacey Testro | Executive Producer |
| Production | Peter Block | Executive Producer |
| Writing | Patrick Melton | Screenplay |
| Crew | Billy Oliver | Stunt Double |
| Crew | Marco Bianco | Stunt Double |
| Crew | Shawn Stewart | Stunt Double |
| Production | Jane Rogers | Extras Casting |
| Crew | Neil Davison | Stunt Double |
| Art | Liesl Deslauriers | Set Decoration |
| Art | David Hackl | Production Design |
| Production | Stephanie Gorin | Casting |
| Art | Anthony Ianni | Art Direction |
| Directing | Elizabeth Scherberger | First Assistant Director |
| Sound | Allan Fung | Dialogue Editor |
| Sound | Tom Bjelic | Sound Effects Editor |
| Sound | Steve Baine | Foley |
| Visual Effects | Jon Campfens | Visual Effects Supervisor |
| Writing | Marcus Dunstan | Story |
| Writing | Thomas Fenton | Story |
| Sound | Keith Elliott | Sound Re-Recording Mixer |
| Costume & Make-Up | Candice Ornstein | Key Makeup Artist |
| Crew | Warren Appleby | Special Effects Coordinator |
| Sound | Jason Hopfner | Boom Operator |
| Sound | Mark Zsifkovits | Sound Re-Recording Mixer |
| Costume & Make-Up | François Dagenais | Prosthetic Makeup Artist |
| Sound | Mark Gingras | Supervising Sound Editor |
| Sound | John Douglas Smith | Supervising Sound Editor |
| Art | Jamie Burke | Construction Coordinator |
| Costume & Make-Up | Stephanie Ingram | Key Hair Stylist |
| Art | James R. Murray | Property Master |
| Writing | Patrick Melton | Story |
| Sound | John Laing | ADR Editor |
| Sound | Andrew Tay | Sound Re-Recording Mixer |
| Visual Effects | Peter Denomme | Visual Effects Producer |
| Visual Effects | Voytek Kufner | Animation |
| Camera | James Jeffery | Camera Operator |
| Lighting | Sean Dawes | Electrician |
| Lighting | Stephen Myers | Electrician |
| Camera | Thomas Care | Dolly Grip |
| Lighting | Richard Berube | Electrician |
| Camera | Brian Gedge | Camera Operator |
| Costume & Make-Up | Stephanie Lees | Assistant Costume Designer |
| Lighting | Ira Cohen | Gaffer |
| Lighting | Tracy Shaw | Rigging Grip |
| Editing | Trevor Lewis | Digital Intermediate |
| Editing | Tom Mayclim | Negative Cutter |
| Sound | Jonathan McHugh | Music Supervisor |
| Lighting | Philip Charles Whitfield | Electrician |
| Editing | Chris MacKenzie | Digital Intermediate |
| Camera | Ernest Spiteri | First Assistant Camera |
| Directing | Elizabeth Tremblay | Script Supervisor |
| Editing | Dave Muscat | Digital Intermediate |
| Lighting | Christopher Takacs | Best Boy Electrician |
| Camera | Kevin LeBlanc | First Assistant Camera |
| Camera | Steve Wilkie | Still Photographer |
| Costume & Make-Up | Ciara Brennan | Costume Coordinator |
| Editing | Nick Paulozza | Digital Intermediate |
| Editing | Nick Iannelli | Digital Intermediate |
| Lighting | Robert DaPrato | Rigging Grip |
| Sound | Jonathan Scott Miller | Music Supervisor |
| Sound | Jonathan Platt | Music Supervisor |
| Lighting | Pete Daprato | Rigging Grip |
| Camera | Monty Montgomerie | Key Grip |
| Sound | Paul Intson | Music Editor |
| Editing | Tavia Charlton | Digital Intermediate |
| Writing | Leigh Whannell | Characters |
| Writing | James Wan | Characters |
| Directing | Joel Hay | Second Assistant Director |
| Production | Greg Copeland | Production Manager |
| Production | Greg Copeland | Co-Producer |
| Production | Troy Begnaud | Associate Producer |
| Crew | Alison Reid | Stunt Coordinator |
