Griff - office worker by day, superhero by night - has his world turned upside down when he meets Melody, a beautiful young scientist who shares his passion for the impossible.

By day Griff (Ryan Kwanten) is an everyday office worker, in an everyday town. He lives a secluded life, bullied by co-workers (Toby Schmitz) - his protective brother his only friend. By night Griff assumes his other identity, roaming the dark streets protecting the innocent and the vulnerable from the dangers that lurk in the shadows - he is the hero, Griff the Invisible.

Increasingly concerned by Griff's eccentric behaviour, his brother (Patrick Brammall) attempts to draw him back into the 'real world'. In doing so he introduces Griff to Melody (Maeve Dermody) an equally eccentric and charming girl. Fascinated by Griff's idiosyncrasies, which are equal only to her own, Melody begins to fall for Griff. As Griff is forced to face up to realities of a mundane world, it is up to Melody to rescue Griff the Invisible for the sake of herself, Griff and their love for each other.