Kilai (2015)

Kilai and Intie are sisters that have lived all their lives in the dinginess of their dusky, damp cave. With Intie's health in risk, they are building a spaceship to find a cure for Intie's sickness in the outside world. But Kilai's fear of death and terror of the unknown, will make her confront Intie in the most unexpected instant bringing her fears to life.