There is a lot of good ideas in this movie. Actually you could make at least four really good horror movies based on these ideas. Unfortunately the director decided to add all these ideas in one single package and created total mess.First, there is a legend of abandoned woman who drowned with her child and haunts the place. Good.Second, there is a legend of elderly woman who lived near the haunted place and may haunt also the place. Good.Third, there is a story of two twin sisters that may kinda share their mind and communicate with each other. Good.Then there is a story of two men who have trouble distinguishing these sisters and may or may not love the wrong one.Then there is a story of a cop who somehow tries to resolve the strange accidents happening at Kilometer 31.Then there is a story of people being killed at the Kilometer 31 even though they have been already dead.Then there is a story of a ghost leading to his own body.Then there is some mess about the sisters that might or might not killed their mother for some reason.Then there is some transmigration and some sacrifice and some ghosts wandering around. And also a lot of people getting hysterical while driving and running from their cars in the middle of the street in the middle of the night so they are getting hit by cars of other people also getting hysterical.I kid you not. This movie has more twist that a complete season of South American soap opera and more ghosts that entire The Ring series. The result is very messy and not scary at all because you have no clue what is happening and why so you do not have any "expectations with bad feelings". You just try very hard to get any idea what is going on and what the hell is happening right now.If the authors somehow decided not to "fire all the guns" at the very same time, they had a very decent chance to make really good series similar to The Ring. Unfortunately they made one huge heap of confusing and disorienting mess.What a wasted opportunity!

Whenever a horror movie proclaims itself to be based on a true story, alarm bells start ringing. This movie proves to be no exception.Quick rundown of the plot: a woman gets hit by a truck on KM31, goes in to a coma. Her twin sister (they mention the fact they're identical twin sisters at least once every ten minutes) gets psychic powers from somewhere; a little kid ghost turns up, there's some nonsense in the forest and everyone dies. It's something like that. The plot is incomprehensible and constantly contradicts itself. Not helping is the fact the main actors Iliana Fox (playing both twins, both of whom appear to be a coma), Adria Collado (who looks like he SHOULD be able to act) and Raul Mendez (who also appears to be in a coma) have trouble expressing to the audience exactly what the f*ck is going on at any stage or, more importantly, why we should care. We are given literally no information on the four characters other than their first names and the fact that they're all dating one another - who is dating whom is an afterthought.An unnecessarily and unrealistically confrontational cop is thrown in to the mix for no other reason than to try and tidy up the plot, but he fails miserably adding yet another unwanted and contradictory subplot. The whole thing ends up in an unintentionally unresolved mess with the audience at a complete loss as to what we have been watching for the past two hours, or indeed, why.The MAIN failing in this movie, however, are the ghosts themselves. The audience is given no reason to fear them other than the fact they ARE ghosts. Of the five ghosts that appear in the movie, one is an idiot, two are passive to the point of uselessness and two simply could not be more helpful if they tried. It is a lazy tool of screenwriters to just stick a monster in their movie and expect the audience to be scared of them. There has to be a reason for us to be scared. Patrick Swayze was a ghost in that movie (can't remember it's name) as was Bruce Willis in The Sixth Sense. Ghosts aren't necessarily scary - the writer must give us a reason to be scared of them. There are a few decent shots in this movie which do nothing other than highlight how bad the rest of it is. It's boring, confusing, badly acted and badly directed. The ending is ultimately unsatisfying and the fact that it appears to have spawned a sequel - out in 2014 (maybe) - is beyond baffling. Give this one a miss.

excerpt, full review at my location.KM31 excited Mexican horror enthusiasts with its release in 2006, following a lengthy baron period. Castaneda's ambitious project looked to combine style with a Mexican folk legend. With the Latino horror crown firmly on del Toro's head, this is the first horror eye-opener to come from Mexico since his chiller Cronos. KM31 went on to become one of Mexico's biggest box office successes, but it's difficult to understand why. Casteneda has sacrificed good storytelling for poor imitation of an already tired style of filmmaking. This is not a terrible horror film, just a terrible disappointment.

Km 31 is good attempt at reviving and old dormant genre within the Mexican film-making history. We have to credit young writer-director Rigoberto Castañeda for his loose approach at horror film-making. I bet he knew all along big criticism was widely waiting for him at the end of this endeavor, and of course, as a result of it the opinions came out truly divided. Some people said he kind of mixed up all his previous horror-thriller influences cramming them together into this very particular Mexican-styled outfit. I believe --like many any other movies- Km 31 is a portrait of his own creator letting us know what he had seen before, who he was influenced by and also, what we can expect from him in the near future.What I see in Km 3 is an interesting new beginning for Mexican horror movies (Spain also had a strong collaboration) and I perceive Castañeda as a young promise for this almost forgotten genre within Mexican film-making. Of course, like some other horror flicks Km 31 has its lows regarding technical aspects, but we ought to side with Castañeda and understand this movie was made with a very low budget and not much previous experience. The thing here is not about being patriotic and forgiving, only because we are supposedly obliged by a moral concern to support any movie made by the new generation of Mexican directors such as Castañeda. There are many other factors at play to consider, like the surprising incorporation of high-end special effects: We have to admit that particular area of production was truly shy in the recent past of many other local Mexican productions and Km 31 is letting us know the doors are open for better stuff and more interesting flicks.Today Castañeda is not only dealing with simple end-product criticism for his Km 31. He is also dealing with the shadows of some past Mexican horror films, and being a sort of new pioneer for the genre, he unavoidably faces the uncomfortable comparisons with the closet skeletons being pulled out for show. That --of course- is completely unfair.Everyone has the right express his own saying, but the truth is Castañeda is already hooked up in to another production were he is directing but not doing the screenplay and that may change things around for him. Siding up with this team and perhaps a better budget, he might end up following the same luck as Director Robert Rodriguez (El Mariachi, Desperado, Once upon a time in Mexico) who started out low but went higher thanks to the people who believed in him. Good luck to them!