Monsters Club on AllMovie

Japanese recluse Ryoichi Kakiuchi (Eita) retreats to a secluded cabin in the mountains and begins sending mail bombs to high-powered CEOs, but finds his grim campaign suddenly interrupted by the appearance of a sinister creature from the forest, and some deceased relatives who refuse to remain silent in their passing. When his sole living relative does her best to reach out to him, Ryochi briskly sends her packing into the snowy wilderness. Meanwhile, both the monster and Ryochi's brothers keep returning uninvited.