With Klara enthralled by an intriguing neighbour and Lucy starting a new job, Pim needs someone to play with. He builds a dinosaur friend out of junk, stunned when it comes to life. But their fun quickly gets out of hand.

Pim and Klara stumble into a strange and beautiful garden within their own house-and have a wondrous encounter that will forever change the way they see their mum. But can they make it out before it's too late?