Imaginaerum tells the story of an old composer named Tom, who suffers from severe dementia. He has the disease for many years and had a regression to childhood, so he can not remember anything of his adult life. His music, friends, all his past, including his daughter are a blur memory in the mind of fragile. All that he remembers is a 10 year old boy. As it approaches the coma, longer it seems impossible to recover. Or can it recover?
The film is a journey between two different sizes. Tom travels through his imaginary world seeking answers and finding memories, while his daughter, named Gem, trying to achieve obligations they have her father in the real world. As time goes on, the two are moving away from each other, and Tom’s death seems near. But through his darkest secrets, Gem discovers the path you need to follow to find their father.