Really very bad plot. It's based on clichês like going to live on a beautiful isolated house to find a killer monster, and a child with her imaginary friend who's not imaginary.
All characters act strangely, forcedly. A guy who wanna approach a child won't talk directly to her and just ignore her mother. A young woman working as nanny won't be in bikini alone with the father when the mother is clearly jealous and hysterical.
And they don't even bother to explain the monster. They barely show it, clearly saving on the costume. But I mean, they don't even care to explain what the monster is and why it lives there, as in lack of imagination.
It's worth only to watch Natasha Bassett and Amiah Miller.