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.
Shusuke Aoe
Madoka Uhara
Kento Amakasu
Rei Kirimiya
Zentaro Uhara
Tetsu Okunishi
Yuji Nakaoka
Chisato Mizuki
Saisei Amakasu
Toru Takeo
Mina Uhara
