For a low-budget film, the effects work is minimal but effective. Arcadian keeps the aliens’ origins intentionally ambiguous and is all the more spine-tingling for it.

It has some memorable moments and it has atmosphere. I think it is best before it shows its hand, or indeed, its teeth.

Stop shaking the camera! On its own it does not imply excitement or tension... Beautiful score, though. Top marks for the composers Kristin Gundred and Josh Martin.

Its effective approach to horror, its wonderful performances, and its inventive creature design are wonderful on their own, and make the movie worth watching despite the poorly crafted script lurking in the darkness.