A stunning end for a great and well thought invasion movie plot. You don't imagine the reason why the starring is haunted by the unknown presence(s) until the very last minutes. I can't imagine how exciting this movie could have appeared if it had more budget available for production (special effects, post production handling). Despite this inconvenient, the plot overcomes this limit and gives an example about the way the psychological insights of the characters should be written and digs into the deepest fears of being violated in what we consider to be the safest place in our life : our home. Technically, the shooting is very good, the exposure (and games) of light and the editing is the best that the tools available to production could have offered.