The Shadow1994

The Shadow:
When you hear one of my agents say 'the sun is shining', you will respond, 'but the ice is slippery'. This will identify you to each other. Do you understand?

Dr. Tam:
The sun is shining…

The Shadow:
But the ice is slippery.

Dr. Tam:
Tell me, uh, one thing. How did you know what was happening to me? How did you know who I am?

The Shadow:
[Laughs darkly] The Shadow knows.