Ending: Did Esposito tell Irene...
...that he finally found the killer (being held prisoner by the husband?) or not? It seemed ambiguous whether Esposito just walked away and left the situation as it was or if he notified the authorities about it. It was briefly mentioned that he finished his novel when talking with Irene, but how he concluded it wasn't discussed.
Hey look--I won an award for just showing up! Yay!!!