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.
Sho Sakurai
Suzu Hirose
Sota Fukushi
Tao Okamoto
Lily Franky
Mirai Shida
Hiroshi Tamaki
Eriko Sato
Etsushi Toyokawa
Masanobu Takashima
Rei Dan
Shoji Omiya