On a forgotten branch line train, a man sets out to visit his father's sanatorium, only to unexpectedly enter a disorienting, otherworldly realm. The train sways with a clanging, rhythmic sound, like an incantation, layering into a labyrinth of compound eyes seen under a microscope. Inside desolate, crumbling houses, time ticks in a weightless, deathly silence. A doctor announces his father's passing. In this space floating between sleep and death, is the man's visit merely a fleeting, illusory dream within eternity, or a single drop of morning dew observed under a microscope? Or perhaps, the story is only just beginning...