He Who Peers Into the Abyss

is the fourth and final episode of Operation: Mystery - Mystery File.
==Synopsis==
Upon a bridge after the rain, a woman was found dead, her body slashed. While the police concluded it was a murder by a sharp-edged weapon, the analysis from the SRI offered a different perspective. 
The weapon was likely artificially created, resembling a whirlwind. Just then, a second incident occurred, with a completely different modus operandi from the first. The victim's proteins had rapidly coagulated due to intense heat within a short span of time. The question arose: was it the same perpetrator or a copycat? And then, the occurrence of a third incident...
==Cast==
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===Guest Actors===
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*Sa-ya
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==Home Media==
*Operation: Mystery - Mystery File Blu-ray BOX features all episodes.
Operation Mystery Mystery File Blu-ray.jpg
==Trivia==
*This episode is a tribute to episode 16 of the original series, "Kamaitachi".
Category:Episodes
Category:Operation: Mystery
Category:Operation: Mystery - Mystery File Episodes
Category:Season Finale