Hannah O'Flaherty is a 16-year-old girl staying at O'Keffee's Boarding School in Galway, Ireland. One day, when she was exploring the basement, she accidentally opened a secret portal to Perth, Australia, where Brett Miller lives with his recently remarried mother Jackie. Brett works as a cleaner for Hannah and introduces himself as Craig (his stepfather) and Wayne (his step-brother). Their new happy family life causes tension between them and Hannah.
The old boiler in the cellar at O'Keefe's explodes, revealing the hidden diar...