Is it just me or did anyone thought ...

that the two of the women looked too much alike?

- both were white and blonde, hair up.
- both had that thin bony look to their faces
- both were wearing white blouses at some point

the initial scenes were especially confusing:

1. when the first blonde woman was at her locker, she looked particular dazed or tired.
2. the second blonde woman was seated in the train cabin and could not find her ticket.

both looked a bit tired, in their respective scenes, that when she said something like,
"..for god's sake, I take this train all the time!", it almost looks like she had knocked off after a long day, and was taking the train home. her anger/frustration showing in that her ticket-collecting colleague was giving her a hard time even though he knew she was good for it.

they should have decided which women was better as the blonde, and casted someone else for the other role.