In the mid-1800s, twelve year old Hélène manages to flee from an isolated patriarchal community in Luxembourg. Years later, she returns in disguise, determined to seek revenge on the family that killed her parents.
Single mother Elaine is disturbed by her son Martin's aggressive behaviour, she visits his late father's estranged family in small-town Luxembourg, which hides a much darker nature. When she realizes that Martin could become like them, Elaine is forced into a desperate fight for her son's future.
Erik is convinced he has a stone for a heart. That’s why he doesn’t mind that his parents have no time for him, or that he is bullied at school, or that he has no real friends. When his family moves to a villa they inherited, he is confronted by Maria whom Erik's parents want to kick out along with her father. Maria refuses to move and promises to make Erik's life a living hell. As a last attempt to defeat Erik, Maria goes to look for her mother who disappeared two years ago. Together they end up on a fantastical journey to the In-Between-World and Erik learns how hard it really is to wear a heart of stone.
Antonio has spent his whole life away from Italy, his home country. He crosses paths with Leo, a young Italian artist who is trying to make it abroad. The old man and the young woman's destinies mirror each other. Memories from the past are awoken and end up offering a more peaceful future to the both of them.