The Cell (2018)

In a strange cell, we discover a silent girl who pretends to sleep whenever her jailer enters. Once she makes a sound when she engraves marks on the wall, she hears the same sound coming from behind the same wall. The girl decides to dig to discover what is hidden behind. But when she creates a hole on the wall, she feels extremely surprised. This reveals a strange but poetic psychological state that cannot be released unless one frees all the feelings of sorrow, and grief.