Audrey Langlois is having the time of her life. For real: as a tv crew is following her in her daily life as a policewoman, a dreadful double murder probe begins in the county. Unfortunately, she is assigned to the Mobile Squad, a police camper-van offering local services leaded by Lily Frédérique, a couch-potato lieutenant. Audrey convinces her to go after the killer. In a camper-van hence.