A young woman accepted for stay, for weekend period, in the house of her uncle. But it is the house of a scientist and you discover this from first images. In the phone conversation, he says about a clear interdiction to his niece. But, like in many horrors, it is ignored under pressure of event.
Two virtues - the spider perspective - so green reminding absinth - and the original murder provocking the terrible revenge.
And, not last, the problem of home , the young woman living in the house of uncle exactly for be ejected from appartment by her friend. The situation of poor spider is not exactly different ( maybe more...simple ).
In short, correct crafted horror.