Paul Hamy portrays “Franck,” who is traveling toward a small French village when Virginie Ledoyen’s character, "Elisabeth," gives him a ride. It's revealed that she's an officer tasked with investigating a pair of murders, while he’s a captain in the gendarmerie pursuing missing children—a search that brought him to this seemingly quiet community. The film evokes echoes of “Doctor Sleep” (2019), as the village sits under the shadow of a sanatorium, and soon the two, initially wary of one another, begin to suspect their separate mysteries are connected. Adding to the unsettling atmosphere is local lore concerning a creature that consumes the spirits of deceased residents—and the story appears to be building toward a violent climax. A potentially crucial piece of information involves "Evan" (Cameron Bain), who survived what were described as his parents' suicides. What did he witness? Does he possess any knowledge? His psychiatrist, “Marbas” (Sandrine Bonnaire), insists on allowing her patient time to heal, but “Franck” believes Evan holds the key. While occasionally a tightly paced murder mystery, the narrative also becomes somewhat diluted as it progresses. The two main characters don't generate much of a connection either, and coincidence seems to influence events just a little too heavily in a resolution that features an appropriate twist, although it feels a bit like "Scooby Doo." It’s passable for a theatrical viewing; the wooded scenery and overall sense of unease contribute significantly. However, watching it on television would likely be a rather unremarkable experience.

Source on TMDB