A famous jazz trumpeter finds himself unable to cope with the problems of everyday life.

In this feature-length film combining footage from classic Warner Brothers cartoon shorts with newly animated bridging sequences, Daffy Duck, after having induced laughter in an ailing millionaire and forestalled the millionaire's death for a time (as chronicled in Daffy Dilly (1948), is the beneficiary for the deceased millionaire's assets. But the millionaire's will clearly stipulates that Daffy must use the money for the common good, by providing a service, and should Daffy think of pursuing selfish aims, the millionaire's ghost will "repossess" his millions by making them disappear from Earthly existence. Under the pretense of community service, Daffy opens an exorcism agency and employs Porky Pig, Sylvester Cat, and Bugs Bunny to track and eliminate ghosts, ghouls, and other monsters, while Daffy secretly schemes to use his learned "ghost-busting" talents to rid himself of the millionaire's nagging spirit.

A power-mad union boss resorts to murder to eliminate witnesses scheduled to testify against him.

Ellen Hallit is in love with her playboy boss, Douglas Morrison, but is too timid to do anything about it. To help her, her roommate Chris decides to step in, and devises a plan. Chris follows Morrison on his trip to Sun Valley, Idaho and plays the overattentive female, hoping that he will send for Ellen (who often played his "fiancée" when he had a female he couldn't discourage otherwise.) Complications arise when Chris catches the eye of band leader Dick Layne, and finds herself caught in a triangle between the two men.

A Korean War veteran returns to Washington D.C. only to discover his business partner had died and their public-research business sold, so he works there undercover to find out the truth.