Sam is a professional boxer about to get released from prison. While on parole, his past catches up with him and he has no choice but to flee. Five years later, he has rebuilt a simple life on an exotic island in Thailand with his wife and her daughter, but when he gets blackmailed by a dangerous local godfather, he must embark on a dangerous drug smuggling mission which results in a tragedy. Now has only one purpose: to seek merciless vengeance.
You can now watch Mayhem! online on the following streaming providers in the United States.
| Directing | Xavier Gens | Director |
| Writing | Magali Rossitto | Writer |
| Camera | Gilles Porte | Director of Photography |
| Editing | Riwanon Le Beller | Editor |
| Production | Moussa Aouidat | Production Manager |
| Production | Adam Marchand | Unit Production Manager |
| Production | Philippe Saal | Production Manager |
| Directing | Jude Poyer | Second Unit Director |
| Crew | Alexandre Cauderlier | Stunt Coordinator |
| Crew | Kévin Cauderlier | Stunt Coordinator |
| Crew | Patrick Cauderlier | Stunt Coordinator |
| Crew | Tanja Keller | Stunts |
| Crew | Jude Poyer | Stunts |
| Crew | Charlie Ruedpokanon | Stunt Coordinator |
| Crew | Olivier Sa | Stunt Coordinator |
| Crew | Moussa Sako | Stunts |
| Production | Anne Gerles | Production Coordinator |
| Directing | Christel Bordon | First Assistant Director |
| Directing | Ferdinand Canaud | Second Assistant Director |
| Sound | Emmanuel Angrand | Dialogue Editor |
| Sound | Guillaume Bouchateau | Sound Effects Editor |
| Sound | Titouan Dumesnil | Foley Mixer |
| Sound | Alexis Durand | Sound Editor |
| Sound | Damien Lazzerini | Sound Re-Recording Mixer |
| Sound | Tom Nicolas | ADR Supervisor |
| Lighting | Jean-Philippe Labille | Electrician |
| Camera | Mano Lyphout | Digital Imaging Technician |
| Editing | Mathilde Delacroix | Colorist |
| Directing | Juliette Baumard | Script Supervisor |
| Costume & Make-Up | Emmanuelle Youchnovski | Costume Design |
| Writing | Xavier Gens | Writer |
| Writing | Guillaume Lemans | Co-Writer |
| Writing | Stéphane Cabel | Co-Writer |
| Production | Vincent Roget | Producer |
| Production | Dimitri Stephanides | Producer |
| Crew | Olivier Afonso | Makeup Effects |
| Crew | Marison De | Makeup Effects |
| Sound | Jérémy Babinet | Foley Recordist |
| Sound | Remy Visser | Boom Operator |
| Costume & Make-Up | Fabienne Menguy | Assistant Costume Designer |
| Editing | Paul Deydier | First Assistant Editor |
| Directing | Navarutt Roongaroon | Script Supervisor |
| Production | Gregory Chambet | Co-Producer |
| Production | Xavier Gens | Co-Producer |
| Production | Gregoire Gensollen | Co-Producer |
| Production | Guillaume Lemans | Co-Producer |
| Production | Michael Teicher | Executive Producer |
| Production | Serge Thimbre | Executive Producer |
| Visual Effects | Thibaut Granier | Visual Effects Supervisor |
| Visual Effects | Arnaud Grelaud | Digital Compositor |
| Art | Tom Kan | Title Designer |