When Scottish backpacker Robbie finds himself in Sydney, he is determined to become a live-in carer for a notorious rock'n'roll legend, Mike, who has been diagnosed with multiple sclerosis. To his delight, he nails the interview and gets the gig. 

But, as he grows closer to Mike, he also grows closer to Mike's wife Angela, and becomes a confidante to both Mike and Angela. As Robbie integrates himself further in their relationship, it becomes clear there's something in Robbie's past which may put Mike and Angela in serious danger.