The first thing you notice about undertone is how quiet it is; not just in its audio mix, but in how it's shot - primarily steady wide shots that slowly pan across empty rooms, allowing your eyes to frantically scan for something amiss. It's an understated form of filmmaking that allows for the movie's scares to hit all that much harder.
We first see teens Naim (Joe Bird) and Ryan (Stacy Clausen) as they engage in a clandestine hang, that familiar dance of a play-fight leading into a kiss. For Naim, it's a new world opening up, a reason to believe there might be something to be happy about in an otherwise dull new town with his warm yet clueless single mother (Mia Wasikowska).