Sara rents her apartment to a film crew for a movie, which involves live animals. Unfortunately, one of the animals, a male lion, escapes and ventures into Henry and Muriel's apartment during their dinner engagement with Arthur Wainwright.
Arthur Wainwright gives Henry an assignment that requires him to work overnight, which is a huge burden for Henry as he has jury duty. Therefore, Muriel, Jackie and Monroe take turns keeping Henry awake at night.
A guy who was pursuing Jackie years ago comes back to town. When Jackie learns this, she makes herself scarce. Sara meets him when he arrives and is amazed by how great he looks. She makes a play for him and they go out. When Jackie learns of this, she's upset.
A bum shows up and says that he and their previous tenant were close. However, he appears not to know that their tenant was a transvestite and they don't tell him. When he leaves something behind, they bring it back to him and discover that he's also keeping a secret.
Sara comes home from a concert angry at Monroe because he didn't stand up to someone who took their seats. She takes him to an assertiveness training class which does wonders for his self-confidence but it also makes him pushy, arrogant and rude to the point that he is told never to set foot in the Rush home again.