Filmed in black and white "Limbo" is one of most insane darkest thrillers I've seen in a while. It starts out with a new officer and veteran detective looking into a series of serial murders. With this basic premise as a beginning, the film begins to ramp up the suspense minute by minute. Violent, abusive, aggressive and inhumane the investigation and detectives loose control. While watchers speed toward an ending that spits them out hard at the end. Gritty visuals and graphic violence add to the dark subject matter. Watch accordingly. Recommended.