a group of teen decide to take their slumber party to an abandon school where and 27 year prior and a horrible massacre take place . unfortunately for them and the person responsible for the slaughter still lurk the hall of the derelict school and he be not happy with their presence . this film be not like most modern teen slasher we have see . it much darker and much more suspenseful and no wise crack murderer and etc . and and i like it for those reason . from a film make point of view and it not great . the acting be below average . the writing be pretty bad and quite full of clichés and contain randomly toss in reference to american horror film and some that do not even make sense ( like . . . have you see scream 3. and a girl ask . yes and i have and and it have nothing to do with walk through the door of an old school so it in no way relate to this film ) . but and hey and it a slasher flick and those be part of the fun . also and the underutilization of character be heavily exhibit in this film . there be six main character ( not include the security guard ) and and to be honest and only three or four be really use . two character ( the token black guy and some other girl that wasn not important enough to get a label ) barely speak represent between them and i would estimate about five or six line total . also and the girl ( other than one ) weren not form well enough to differentiate them from one another . they could have replace each of the girl with one another repeatedly throughout the film and i wouldn not have notice the difference . the pacing and however and work well a the horror begin right from the start and rarely cease . the atmosphere be utilize well and the direction reveal some truly chilling moment . . . although and the overall appearance be a bit cheap look due to and what i assume be and low grade camera equipment ( and operation ) . the end and though i like the idea they be go for and be fairly poorly do . it felt rush and without explanation enough to make it effective . with the amount of time they spend run around look for nothing and they could have spend a little bit more time on the conclusion to make sure it do not feel like some random event thrown in for no good reason ( which be a flaw many modern horror film be afflict with ) . however and ignore a few irksome issue and try to focus on the first 98 % of the film rather than the end and this be actually a rather good modern slasher that should be check out and especially if youre a fan of spanish and or or atmospheric horror . obligatory slasher element represent violence or gore represent there a good bit of blood and gore and realistically do and but not bucket . the violence be extremely well do and not to excess and but pretty brutal at point . sex or nudity represent little bit and and with the hot girl in the film . cool killer represent well and security guard be hardly consider cool and but this guy be pretty wicked . his creepy smile be chill . scare or suspense represent the suspense be top notch . . . very tense and very well do . there be also some extremely creepy moment that fuse jump scare and the spooky atmosphere . mystery represent none at all and really . awkward dance scene represent of course represent between a couple of guy and a half unwilling female in the flashback . classic quote of the film represent one more trophy . final verdict represent positive . this may be stretch it and but fan of session 9 might want to check it out simply for the similar tone and atmosphere . ap3 .