When eighteen year-old Keiko Yamada's father dies unexpectedly, he leaves behind a one way ticket to Japan, an unintelligible death poem about powerful Japanese spirits & their gigantic, beast-like Guardians, & the cryptic words, 'go to Japan in my place, find the gate, my camera will show you the way'. Alone & afraid, Keiko travels to Tokyo, determined to fulfil her father's dying wish.