Man becomes boy; today is interwoven with the day before yesterday.

The freedom of the mind has triumphed over the unalterable law of the outer world.
It is interesting to watch how playwrights nowadays try to steal the thunder of the photoplay and experiment with time reversals on the legitimate stage.

We are esthetically on the borderland when a grandfather tells his grandchild the story of his own youth as a warning, and instead of the spoken words the events of his early years come before our eyes.

This is, after all, quite similar to a play within a play.

A very different experiment is tried in "Under Cover." The third act, which plays on the second floor of the house, ends with an explosion.