An Ivorian immigrant is found dead in the Naples docks; it's Vincenzo's first case on his return to Naples and he relies on informers and confidants.

One of the most promising students at a dance studio in one of Naples' fashionable neighborhoods, is found dead after a party involving sex and drugs down in the Posillipo quarter.

An influx of fentanyl, a low-cost, high-risk synthetic opioid, is invading Neapolitan nightlife; the first victim is a young Spanish tourist but the dreaded blue pills are everywhere and the chemical composition of some of them is out of control.

Vincenzo is left shattered by an unforeseen tragedy for which he feels personally responsible; though Sonia shows her fondness by doing all she can to stay close to him, his sole obsession is now the hunt for Iodice.