《梦魇之旅》讲述了一名患有老年痴呆症的老年作曲家汤姆的故事。一开始讲述老年作曲家汤姆已经记不起自己成年时代的任何生活轨迹和事情。只记得他在10岁时的男孩生活，这导致作曲家一直在自己的想象世界中寻找答案。他在寻找自己生命中最重要的东西。影片以一个男孩的幻想世界为引，引导观众发觉每个人心中最宝贵的记忆

年逾七十的作曲家汤姆因为癫痫和老年痴呆，让他忘记了女儿节目的存在，自己的脑海已经退回到那个充满了奇幻色彩的同年时代。在自己的记忆最深处，汤姆一直认为自己是那个生活在孤儿院的10岁少年，正在御空飞行追赶多年未曾见面的父亲。在汤姆的世界里，他和父亲遭遇了风暴，坠落在一个未知的地方，四周是循环往复的旋律，他甚至见到了当时只有7岁的女儿节目，但是汤姆已经丢失成年以后的记忆。在这个奇幻的世界里，汤姆在经历着毕生难忘的旅程。

"Nightmare Journey" tells the story of Tom, an elderly composer who suffers from Alzheimer's. At the beginning, it tells about the old composer Tom who can't remember any life trajectory and things in his adulthood. Only remembering his life as a boy at the age of 10 has led the composer to search for answers in his own imaginary world. He is looking for what is most important in his life. The film is guided by a boy's fantasy world, leading the audience to discover the most precious memories in everyone's heart.

Composer Tom, who is over seventy years old, has epilepsy and dementia. I forgot the existence of my daughter's program, and my mind has retreated to that era full of fantasy. In the deepest part of his memory, Tom always thought that he was the 10-year-old boy living in the orphanage, chasing his father whom he hadn't seen for many years in a royal flight. In Tom's world, he and his father encountered a storm and fell in an unknown place, surrounded by repeated melodies. He even saw the program of his daughter who was only 7 years old at the time, but Tom has lost his adult memory. In this fantasy world, Tom is experiencing the journey of a lifetime.