Lucy moonlights as Milton Berle's secretary. She overhears Milton rehearsing a torrid love scene, thinks that the comedian is cheating on his wife and plots a suitable comeuppance.
Lucy convinces Mr. Mooney that she's too ill to come to work so she can go to a department store sale. After examining some of the items for sale in the store (and causing a lot of damage), she learns she is the ten-millionth customer and wins many valuable prizes. One prize she wins isn't one to her liking - her photograph will appear prominently in the next day's morning newspaper. Lucy goes to great lengths to make sure that her boss doesn't see the incriminating photograph and fails miserably.
A European movie company fronted by a famous French movie actor comes to Los Angeles to set up shop. Mr. Mooney's plans to land their account are nearly scuttled when Lucy becomes inebriated on French champagne.
A young man wants a career in the music, but his uncle insists he learn the banking business. Lucy arranges for an impromptu audition with a record producer in the bank's lobby.
Lucy tries to convince Jack Benny to take his money from his underground vault and deposit it in Mr. Mooney's bank. She plans to do so by designing even more elaborate precautions than Benny's own booby-trapped passages.
Mr. Mooney orders Lucy to dress up as an elderly woman and escort the aging bank president to the annual banquet. The old man would rather chase Lucy around his living room.