A man, seemingly injured in a traffic accident, finds himself under observation at an isolated police station, and from there, he begins to influence the feelings of both the officers and those incarcerated within its walls. While the storyline isn't entirely original—a criticism some have leveled against Brian O’Malley’s film—the skill with which it’s presented, the technical expertise involved, and the carefully crafted atmosphere elevate it above many horror offerings. The presence of Liam Cunningham in a central role further enhances the experience, creating a movie that delivers both startling moments and genuine wonder as the story progresses. It doesn't shy away from depicting violence, instead placing humanity's capacity for cruelty directly in view with visceral force. The cinematography by Piers McGrail is exceptional; the striking combination of blues and golden browns creates an unsettling contrast with the grim reality of the prison environment, a visual pairing that complements the characters portrayed. Steve Lynch’s musical score is also noteworthy—a genuinely disturbing composition that steadily wears on your nerves, mirroring how Cunningham's character affects those around him. For viewers who appreciate this type of film, there's much to enjoy here; it does stumble slightly toward its conclusion, perhaps demanding a bit too much from the audience, but this doesn’t ultimately detract from what is a horror film well worth experiencing. 7/10

Source on TMDB