This is more than just people-watching Rachel is clearly invested in these peoples lives.

What about Tom (below)?

The way they brood and stare in these shots could mean anything from confusion to cold calculation to guilt.

RACHEL WATSON (Emily Blunt)

And since we dont know whose hand is doing the yanking, theres another mystery there, too.

Later, she asks Rachel point-blank, Did you murder Megan Hipwell?

Rachel says no, but…

7. she whispers, crying, Because Im afraid of myself.

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The Girl on the Trainrolls into theaters this October.

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