Dream or no dream

No, but near the end I was thinking that's what it would be. When she leans against the wall and slowly sinks down to the floor, it would have been the perfect opportunity to have her land on the seat instead, and then wake up as the last train arrives.

Not a dream or hallucination but when she tells her story to the authorities they will say it was. Erk. What an irritating movie - reminds me of that weird movie "Bug".