A police chemist, Aurélie has been raising her son alone since the death of her partner. When Commissioner Max Vernet uses her skills to investigate UBH, a new synthetic drug that is starting to claim victims, she has no idea that she will find herself infiltrated into the heart of a network of young and dangerous traffickers. Faced with the charismatic Jesus, who runs the network from Marseille, does she have a chance of successfully completing her mission? To save her son, Aurélie no longer has a choice. Maternal love is a hard drug...
| Directing | Jean-Philippe Amar | Director |
| Writing | Frédéric Krivine | Writer |
| Camera | Stéphane Aupetit | Director of Photography |
| Production | Okinawa Valérie Guerard | Casting |
| Production | Emmanuel Daucé | Producer |
| Production | Marie Madec | Executive Producer |
| Sound | Éric Neveux | Music |
| Editing | Raphaël Péaud | Editor |
| Editing | Olga Pénot | Editor |
| Costume & Make-Up | Elise Feuillade | Key Hair Stylist |
| Costume & Make-Up | Julia Floch-Carbonel | Key Makeup Artist |
| Costume & Make-Up | Laure Giroult | Makeup Artist |
| Crew | Geoffrey Dahm | Post Production Supervisor |
| Directing | Carole Amen | First Assistant Director |
| Art | Sébastien Borie | Property Master |
| Art | Baptiste Bonin | Standby Property Master |
| Sound | Jean-François Schenegg | Boom Operator |
| Sound | Christophe Vingtrinier | Sound Re-Recording Mixer |
| Camera | Amélie Gastaldi | Second Assistant Camera |
| Lighting | Sylvain Cahuet | Electrician |
| Camera | Delphine Desbruères | Camera Operator |
| Camera | Simon Guirlinger | Grip |
| Camera | Ludovic Jacques | Grip |
| Camera | Sébastien Lane | Grip |
| Camera | Farès Messaoud | First Assistant "B" Camera |
| Lighting | Guillaume Payen | Gaffer |
| Camera | Edgar Raclot | Key Grip |
| Camera | Lucas Rochard | Grip |
| Lighting | Fréderic Toussaint | Electrician |
| Lighting | Florian Vogel | Electrician |
| Editing | Charles Fréville | Colorist |
| Editing | Elodie Mittet | Assistant Editor |