One day, the main character starts having strange dreams every night. In his dreams, bizarre dolls chase him, the cozy attic he used as a childhood hideout becomes too big to see in real life, and other unrealistic things happen.
Players must step into the protagonist's shoes and move back and forth between dream and reality to find out why they're having these dreams and why these bizarre things are happening. The dream world is governed by different rules than waking life, and places and objects appear with a twist based on the protagonist's childhood memories and feelings. These unrealistic elements are related to secrets hidden deep within the protagonist's mind.
The player must solve various puzzles, collect clues, and progress through the story.