Last Express iPhone game - how do I save Anna from being killed by vesna?

In the iPhone game The Last Express I'm stuck on the bit after Anna leaves because Vienna is coming up. I have no idea where to go and after a while the screen changes to when the train conductor finds Anna dead. I'm suppose to go to the baggage compartment to save her but I don't know which one and where it is. Any help?

The baggage car is behind the purple curtain, when you enter to dining car. (But you know this, becase you were there before… ) You go there, continue straight through another door and just before the end of the train, when you turn to right, you will see baggage compartment that is usually closed - now it is open. You enter and other things I'd say would spoil it for you.
If you play the game on your iPhone, you should have a blueprint of the train in your inventory, that should help you to orientate in the space. Plus the three-layered hint system is helpful.