Soshite Bokura wa,

A group of young people arrive on an isolated island, steeped in old legends, to shoot an independent film. But soon, mysterious things start happening one after another. Shadows of things they shouldn't be able to see, as well as two strange men drawing closer to them. Various phenomena they run into start to intertwine, triggering a series of inexplicable events. And we, find ourselves at the mercy of the fate that has begun to turn. [translated from DLsite]