Synopsis

The lives of 12-year-old twins Hugo and Loona have been altered forever. And it’s no wonder, because dealing with their beloved dad’s unexpected death is no easy task. Hugo, who shared a love for making art with his dad, has lost interest in everything. Loone, who used to be a real busy bee, can’t even get out of her pajamas anymore. As if that weren’t enough, their mom has an accident and ends up in the hospital, leaving the twins pretty much on their own. Searching for some kind of consolation, Hugo and Loona come across a mysterious old-fashioned key and a newspaper clipping in their dad’s desk in the attic. After they show their neighbor Professor Kruubel what they found, the kids realize they themselves may be essential to solving the mystery. However, they haven’t a clue that the key will also draw in a myriad of ghosts in Tallinn’s Old Town.