Spiral by Koji Suzuki

A medical examiner becomes obsessed with a series of inexplicable deaths connected to a rumored cursed videotape and, through autopsies and laboratory work, uncovers a disturbing biological mechanism behind the phenomenon: a spiral-shaped pattern in DNA and microorganisms that spreads like an infection tied to memory and storytelling. As he traces the contagion’s origins he confronts a mixture of cold science and grieving human histories, forcing him to choose whether to expose the truth about a living, transmissible horror or to try to contain it for the sake of the living.

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