On her wedding day, Eliza decides to play the favorite melody of her grandmother, who died the day before, on the violin. But everything falls out of her hands. To find comfort, she goes to the deceased's room - an inexplicable force seems to be pulling her there. Inside, the girl discovers a mysterious music box. The melody comes to life, everything looks magical. And then something incredible happens - Eliza loses consciousness and wakes up in... a labyrinth. She has never been here, what should she do? She has a lot of tests ahead and a long road home. But escaping from the tenacious clutches of the inhabitants of the labyrinth is not so easy.