Pathologist Ando is at a low point in his life following his small son's death from drowning and the subsequent break-up of his marriage. Work is his only escape, and his depressing world of loneliness and regret is shaken up when an old rival from medical school, Ryuji Takayama, turns up on his slab ready to be dissected. Bizarre things happen during the post mortem that link Ryuji's demise to a series of mysterious deaths. From beyond the grave Ryuji appears to be leading Ando towards a suspicious videotape - could this hold the answer to the riddle of the strange deaths? Or is it merely the first clue? When Ando meets Mai, an attractive former student of Ryuji's, his desire to solve the puzzle transcends curiosity and becomes a matter of life or death.