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To cope with overpopulation on earth, the process of downsizing has become very popular. It's the spooky season and four roomates are throwing a cosplay party before starting their new lives. At the struck of midnight they all downsize and go to bed. But the giant robber was already in the place... hiding in the dark and waiting to strike. He uses his new laser device to melt the door's keyhole and enters the room. However the tiny roomates are resourceful. They manage to tie the robber's hands and feet and call the cops. But their victory will be short lived. Shortly after the robber breaks free and now he has time to prey on the shrunken helpless roomates. He will swallow them one by one down his throat. Before the cops get there he would be long gone and nobody would know about what happened to the four roomates...