If you look into the entrance of one of the huge caves on the Korean island of Jeju, it looks like a camera lens. If you walk into the cave, it looks like a screen, a rectangle showing clouds and white light, just like a film. Director Kim Minjung delves into the bloody history of Jeju, where tens of thousands were killed in a massacre in 1948. The camera follows the traces in the landscape, sometimes transformed by a strident, distance-creating red light, accompanied by a commentary by avant-garde filmmaker Hollis Frampton. Film as a means to address history and its taboos.

• Documentary