A thriller is a movie, in which the makers want the audience to wonder what's going to happen next.
Seeing the revival, audiences may wonder if there is any life left in the play, if it hasn't been superseded by the musical.
For a long while, the audience may wonder how all of these vignettes are going to come together, but in a way they finally do.
The audiences wondered how she had come so far so fast.
No, Con said in his throat, and the audience wondered of the delay.
The audience may well have been wondering the same thing.
Now the audience is wondering where Phil is.
But audiences who didn't see the London version may wonder what the fuss was about.
They seem to enjoy each other's company so much that the audience can only wonder what happens when they have a marital tiff.
The audience is confronted by a dark and twisted story, and initially wonders whether to laugh or cry.