I think that the ghost is actually the boss or someone else because how can a ghost do that to him. And he actually feels like it happened fr so it could be they can see a ghost but it's disguised as the boss so he doesn't know it's a ghost. The woman saw that it was not the boss so maybe the ghost is really not the boss plus the boss has purple eyes. Also the ending maybe the person is also a ghost idk because it's giving ghost vibes and I have a feeling his crush is the director