In the movie Joker (2019), Arthur Fleck
imagines a scenario in his head that he is in a relationship
with the neighbour, Sophie.
as we realise when Arthur enters her apartment late at night, and she
gets freaked out by his presence and begs him to leave.
Arthur had at that point entered a nearly full-blown state of psychosis and was basically killing or ready to kill those who 'wronged' him.
He had already killed the three subway bullies and his mother, and he was ready to kill his coworker and Murray.
This scene where he enters her apartment is poignant in that he realises their relationship is entirely made up, but when questioned by her he replies "I've had a really bad day". This indicates that he's looking for help in the one place he thinks he might still be able to get it, no matter how unlikely. She asks him again to leave and says "Is there someone I can call? Is your mom home?"
Arthur had just murdered his mother in the hospital, so I'd doubt that would have made him happy.
I left the cinema thinking that he'd simply walked away. But my wife was under the impression that
he killed Sophie (and possibly her daughter).
Is this the case?
The reason why I don't think this happened was that in the interview with Murray Arthur says something about the people he'd killed
that didn't include Sophie.