warn spoiler aheadshort version represent this movie suck . long version represent a somebody else write and the hole be in the plot line . or good and there be lot of hole and but mainly representa ) martin have a perfect alibi and yet he the suspect from the beginning and nobody believe him . but and since they find him ( dead ) with the key and he must be guilty . and liz must surely be rather strong and if she can plunge him in the river so easily . and rather quick and to put the key in his pocket without anybody ( in the audience ) noticing . martin die only a few yard away from liz house and but no one seem to care about that . b ) hello . do anybody tell the psychologist there be three dead body in the cell and one of which with his head crush . how come the police act a if nothing happen and no one ever talk about it . how come liz be never question seriously about these death . the first version of the story end with everybody come out of the hole happy and smiling and but the psychologist seem to believe it . c ) the hole be abandon since ww ii and but there still be electricity . the hole have an emergency exit which can be lock from outside and in order to make it completely unuseful . the door of the hole have a glass part and but nobody try to break it . d ) the door key magically appear in martin pocket some time before and because he would not let u know who give it to him and and if we know it and that would mean that someone else know about the existence of the hole and and that would have make it too complex for the writer . e ) nobody in the school notice that the boy do not go to wale and and their family do not notice they do not come home . it take at least three day to understand that there be something wrong . f ) liz be so convincing when she talk and that everybody instantly believe her represent see the end . g ) think about this represent when liz come out and the door be open . if martin be on holiday and who the hell could open it without a key . i think that enough to explain why the movie doesn not work . a thriller be a dangerous game represent if you want to play it with the audience and you must be sure you can handle it . a many famous screenwriter say and you have get to take the story and shake it foundation represent if it survive and you have probably get a good movie come on . this one crumble quite miserably .