"Until Dawn" feels like "Scooby Doo" geared toward grown-ups. A group of friends on vacation stumble into a strange history and encounter numerous supernatural enemies who intend to kill them off in a violent fashion. What distinguishes this from typical, predictable survival horror is that the plot revolves around a time loop. Essentially, it’s a horror movie with obsessive compulsive disorder. The killings and chaos keep happening again and again, which eliminates even the basic element of uncertainty because you stop caring about who will die next or when. I can understand how this concept might work well in a video game—and this film is based on one—where players repeatedly meet their end until they discover how to win. However, as a movie, it’s not a particularly good idea. A feeling of sluggishness and weariness creeps in because everyone keeps dying over and over. I don't want to come across as overly critical, but there isn’t much that’s positive about it. The initial feeling of unease is effectively created, the monster effects are acceptable, and so is the acting from the performers. The deaths themselves are diverse enough to prevent it from being entirely repetitive. Ultimately, this is a passable viewing experience that violates a key principle of survival horror: people die repeatedly. This diminishes any sense of urgency or danger, resulting in a somewhat dull and fundamentally repetitive film.

Source on TMDB