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.
![aHo8352V9gA1y3IE1QCvaNdioz9](http://84.247.133.159/wp-content/uploads/2021/06/aHo8352V9gA1y3IE1QCvaNdioz9-60x90.jpg)
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.