A 50-year-old caretaker is employed to look after 10-year-old girl. His most important task is to maintain her dentures that are made of ice and must be changed several times a day.

Somewhere in Europe, mid-20th century. Albert is employed to look after Mia, a girl with teeth of ice. Mia never leaves their apartment, where the shutters are always closed. The telephone rings regularly and the Master enquires after Mia's wellbeing. Until the day Albert is instructed that he must prepare the child to leave.