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.
Cast: Sho Sakurai, Suzu Hirose, Sota Fukushi, Tao Okamoto, Lily Franky, Mirai Shida, Hiroshi Tamaki, Eriko Sato, Etsushi Toyokawa, Masanobu Takashima
