Based on

Movies like Castle of Sand (2019)

A bruised and battered corpse in Shibuya, Tokyo has the attention of the local cops. A veteran detective is assigned to the case. The last utterance of the victim is one clue that detective Imanishi has to work on. Yet, the case becomes more tangled quickly. Elsewhere, a prodigy named Waga Eiryo is composing an orchestral piece. Remake of The Castle of Sand (1974).