In the summer of 2020, as Germany slowly emerges from lockdown, a young Japanese woman studying in Göttingen waits at the train station to meet an old friend. Nomiya died a decade earlier in the Tohoku tsunami, but he has suddenly returned without any explanation. The reunited friends share a past that's a world away from the tranquillity of Göttingen. Yet Nomiya's spectral presence destabilises something in the city: mysterious guests appear, eerie discoveries are made in the forest and, as the past becomes increasingly vivid, the threads of time threaten to unravel.