In the film, Porky, Petunia, and their siblings are the intended heirs of their recently deceased uncle. The family's lawyer uses a Dr. Jekyll-style potion to transform himself into a monster. He proceeds to capture most of the heirs, but he is trapped before managing to capture Porky.
Plot
On a stormy night, Porky and his siblings learn of their inheritance from their late uncle Solomon. However, their seemingly benevolent lawyer, Goodwill, transforms into a monstrous killer after drinking a Jekyll and Hyde potion. Breaking the fourth wall, the monster warns the audience not to intervene, especially the one in the third row.
One by one, the monster captures Porky's brothers, leaving only Porky and Petunia. As they search the house, the monster snatches Petunia and pursues Porky. Cornered, Porky stumbles upon his captive siblings in the laboratory. Just as the monster is about to strike, a theater chair mysteriously appears, trapping the monster and saving the day. When Porky and his siblings asks who helped save their lives, the voice reveals himself as the attendee in the third row and calls the monster a big sourpuss for what he done.
^Beck, Jerry; Friedwald, Will (1989). Looney Tunes and Merrie Melodies: A Complete Illustrated Guide to the Warner Bros. Cartoons. Henry Holt and Co. p. 63. ISBN0-8050-0894-2.
