Monika, a 13-year-old Lithuanian girl, has recently moved to Dublin, where she lives in a tiny flat with her mother Jolanta and grandmother suffering from dementia. Jolanta, a gifted pianist, works hard in the new country in a fish factory and music is the last thing on her mind. But Monika is a passionate singer and is determined they will become famous. When mother and daughter are invited to play at a mysterious location alluringly named “The Castle,” the mother refuses. But Monika decides to accept the invitation and needs 120 euros to rent a keyboard. Desperate, she decides to kidnap her grandmother in order to demand ransom from her mother. What can go wrong?