Seventeen-year-old Mariah Mundi's life is turned upside down when his parents vanish and his younger brother is kidnapped. Following a trail of clues to the darkly majestic Prince Regent Hotel, Mariah discovers a hidden realm of child-stealing monsters, deadly secrets … Aneurin Barnard, Michael Sheen, Lena Headey, Sam Neill, Ioan Gruffudd, Keeley Hawes, Tristan Gemmill Added on Amazon Prime 2023-07-20. Youtube Trailer