What if your child's imaginary friend was real?

All children have imaginary friends. It's perfectly normal.

But when Georgina's young son Cody tells her about his 'New Granny', a mysterious friend from the park, the words send shivers down her spine. Georgina's beloved mother died only months ago.

Her husband Bren is certain the woman is an invention, Cody's way of grieving for his grandmother, but there's something in the way Cody talks about his new friend that feels so real.

Is someone out there, watching Georgina's family from the shadows?

Is Cody's imaginary friend not so imaginary after all?