A year ago, Nan Xi was chosen to go undercover in Jiangcheng and take part in research on a miracle drug.
A year later, after returning to Rongcheng, she becomes entangled in two consecutive suicide cases involving the drug.
It turns out that everything is connected to her undercover mission a year ago.
To investigate,
forensic examiner Nan Xi and her husband Lin Pu, a private detective, join the miracle drug task force,
to investigate a series of cases caused by the drug…
