A young woman in Paris goes to a party in the enormous labyrinth of limestone tunnels beneath Paris. When she becomes separated from her friends, she is convinced something is chasing her through the dark tunnels.
| Writing | David Elliot | Screenplay |
| Directing | David Elliot | Director |
| Sound | YOSHIKI | Music |
| Production | Rebecca Mangieri | Casting |
| Writing | Tomm Coker | Screenplay |
| Production | Mark Burg | Producer |
| Production | Gregg Hoffman | Producer |
| Production | Oren Koules | Producer |
| Production | Domnica Circiumaru | Casting |
| Production | Barbara Fiorentino | Casting |
| Costume & Make-Up | Jennifer L. Soulages | Costume Design |
| Production | Wendy Weidman | Casting |
| Directing | Tomm Coker | Director |
| Costume & Make-Up | Andreea Tudose | Makeup Artist |
| Art | Mihai Alecsa | Construction Coordinator |
| Art | Dana Andreianu | Art Department Coordinator |
| Visual Effects | Mikkel Groesland | Animation |
| Art | Christian Niculescu | Production Design |
| Art | Vlad Vieru | Art Direction |
| Costume & Make-Up | Clara Tudose | Makeup Artist |
| Editing | Josh Rifkin | Editor |
| Sound | Allan Fung | Sound Editor |
| Art | Grigore Purcariu | Assistant Art Director |
| Sound | Mark Gingras | Supervising Sound Editor |
| Crew | Ciprian Dumitrașcu | Stunt Coordinator |
| Camera | Bogdan Stanciu | Steadicam Operator |
| Art | Liviu Marcu | Sculptor |
| Sound | Tom Bjelic | Sound Effects Editor |
| Camera | Cos Aelenei | Still Photographer |
| Crew | Marius Vlad | Transportation Coordinator |
| Sound | Todd Beckett | Sound Re-Recording Mixer |
| Camera | Dalila Dulgheriu | Camera Operator |
| Visual Effects | Jeff Campbell | Visual Effects Supervisor |
| Sound | Mark Zsifkovits | Sound Re-Recording Mixer |
| Art | Serban Rotariu | Assistant Art Director |
| Production | Gabriel Popescu | Production Manager |
| Directing | Mariana Lina | Script Supervisor |
| Lighting | Florin Niculae | Gaffer |
| Crew | Emil Ardeleanu | Special Effects Coordinator |
| Sound | Rob Bertola | Music Editor |
| Visual Effects | Chad Malbon | Visual Effects Producer |
| Sound | Jamie Gould | Sound Re-Recording Mixer |
| Camera | Maxime Alexandre | Director of Photography |
| Costume & Make-Up | Gabi Cretan | Key Makeup Artist |
| Art | Sorin Popa | Assistant Set Decoration |
| Art | Dan Popescu | Draughtsman |
| Art | Kira Cristia | Draughtsman |
| Directing | Virgil Nicolaescu | First Assistant Director |
| Directing | Anthony Carregal | Second Assistant Director |
| Directing | Ruxandra Slotea | Second Assistant Director |
| Camera | Andrei Cretan | Assistant Camera |
| Camera | Catalin Stoica | Best Boy Grip |
| Lighting | Sandu Constantin | Electrician |
| Lighting | Nicolae Vasilescu | Electrician |
| Camera | Dalila Dulgheriu | Epk Camera Operator |
| Camera | Valerio Villalba | First Assistant Camera |
| Camera | Ionut Lupulescu | Focus Puller |
| Camera | Adrian Sandor | Focus Puller |
| Crew | Daniel Ciobanu | Generator Operator |
| Camera | Marian Pisau | Grip |
| Camera | Razvan Paslaru | Key Grip |
| Camera | Benoît Feller | Second Assistant Camera |
| Production | Samantha Finkler Brainerd | Casting Associate |
| Costume & Make-Up | Eli Calin | Assistant Costume Designer |
| Costume & Make-Up | Carmen Stefan | Costume Assistant |
| Costume & Make-Up | Lauren Blair | Wardrobe Assistant |
| Visual Effects | Nick Perks | 3D Director |
| Visual Effects | Naomi Anderlini | Digital Compositor |
| Visual Effects | Ralph Schmidt | Digital Compositor |
| Visual Effects | Phil Dakin | VFX Lighting Artist |
| Crew | Liviu Lungu | Special Effects Technician |
| Sound | Liviu Lupsa | Boom Operator |
| Sound | Brad Dale | Dialogue Editor |
| Sound | Steve Baine | Foley Artist |
| Sound | Peter Persaud | Foley Recordist |
| Sound | John Douglas Smith | Sound Editor |
| Editing | Daniel Freedman | Additional Editor |
| Editing | Sera DiBlasio | Assistant Editor |
| Editing | Ruxandra Ghițescu | Assistant Editor |
| Editing | Tom Mayclim | Negative Cutter |
| Sound | Yvonne McDonald | Music Supervisor |
| Production | Troy Begnaud | Production Coordinator |