After dinner, the two couples meet a colleague of Renzo's who also happens to be the boyfriend of the victim's sister, Meg.
The next day, Gaetano and Torre speak again with the suspect, and Camilla is present as well, with her student.
Matches in Transcript
Caption 26 [it]: che strana coincidenza. -Eh, ecco, appunto è una coincidenza. Caption 26 [en]: What a strange coincidence. -Yeah, that's it, exactly, it's a coincidence.