Marian (Aneurin Barnard) is a 17-year-old innocent boy. One day, his parents mysteriously disappeared, leaving Marian and his younger brother Felix (Xavier Atkins) living a life of dependence on each other. However, misfortunes never come singly. Felix was kidnapped by a wicked man and his life was in danger for a while. Marian met the eccentric adventurer Charity (Michael Sheen), and the two went to a remote island to rescue Felix. There, Marian and Charity walked into a mysterious hotel, and a magical world appeared in front of them. There were not only precious treasures, but also vicious enemies and thugs. In the end, can Marian successfully rescue Felix and find the truth about his parents' disappearance?