All the world's a stage. It certainly is for ace actor Tony Warner. On the wagon and his Macbeth is a success.
Tony might be arrogant, he has no time for his understudies or even his neighbours who have come to see the show. However the show must go on even if it means one evening he gets blind drunk and has an accident on stage which leaves him hospitalised.
The accident turns out to be Jim's big break. Jim was Tony's understudy for Macbeth. He is engaged to another understudy Laura who wants him to be more assertive take any sudden opportunities that come his way.
The episode hints at an obvious twist but that is misdirection. An element of Misery as Jim finds out that he has a number one fan.