The protagonist is still Paola Cortellesi, who plays the role of Petra an inspector with her colleague Andrea Pennacchi in the role of deputy inspector Antonio Monte. The series is directed by Maria Sole Tognazzi and the cast includes Manuela Mandracchia and Francesco Colella, respectively in the roles of Beatrice and Marco, two new characters who will revolve around the lives of Petra and Monte. The psychoanalyst Riccardo is played by Sergio Romano.
The title of the first episode is Snakes in Paradise.