An environmental analyst is asked by the police to determine if two deaths by hydrogen sulfide poisoning are an accident - or a murder. But when he meets a young woman at both sites, a scientific mystery begins.
Production companies：
TOHO
·
OLM
·
dentsu
·
East Japan Railway Co. (JR East)
·
J Storm
·
KADOKAWA
·
OLM
·
Toho Pictures
·
Raku Film
·
Overview：An environmental analyst is asked by the police to determine if two deaths by hydrogen sulfide poisoning are an accident - or a murder. But when he meets a young woman at both sites, a scientific mystery begins.
