The Voice of Water (2014)

Minjung, a young zainichi Korean woman, draws a small but fervent following as the puppet leader of God's Water, a cult in which she is said to communicate with a water oracle in order to heal pain of the damaged and lonely. When her following starts to pick up and her estranged father enters the picture, things start to unravel, prompting Minjung to seek out her roots, and ultimately find herself.