Dr. Jekyll and Mr. Mouse

The milkman delivers two bottles of milk to the house of Tom and Jerry. From the basement window, Tom takes one bottle with one hand and runs into the living room. Tom pours the contents into his plate and hides the already empty bottle. When the cat laps milk, he sees that Jerry also enjoys drinking. Tom tries to get rid of Jerry, but fails, and in the end decides to take such a step ...

In the laboratory, Tom mixes various chemicals in his milk, such as naphthalene, ammonia and others. Tom dips a spoon into his poison, and she has a charred tip. A fly flies up to the poison, and when it tastes milk, it immediately dies. Satisfied Tom carries his elixir to Jerry's hole and hides. Jerry drinks milk, and according to Tom, he dies, but then an unexpected transformation takes place with the mouse: he becomes super-strong. The powerful mouse is threateningly approaching Tom. He tries to stop the monster with a dictionary and a poker, and even hides behind the door, and then in the safe, but in vain. Jerry, grabbing Tom by the chest, hits him on the safe door.

But then the transformation ends, and Jerry becomes the same again. The mouse tries to drink the elixir again, but Tom tears it off the plate. However, the mouse still manages to take one sip. Becoming a strong man again, Jerry grabs Tom by the mustache and throws him to the floor, either left or right. But because of too little fluid, Jerry becomes normal again after a few seconds. The mouse runs to the plate again, but Tom knocks it over with his foot. The chase goes into the kitchen. Jerry tries to stop Tom by tucking his tail into an electric waffle iron, and then locks the cat in the refrigerator. While Tom is trying to get out, Jerry runs into the basement and himself prepares the potion, though with a different composition, adding a white shoe cream. Tom, getting out of the refrigerator, bursts into the basement. The mouse tries to escape, but Tom presses his tail with his paw to the table, takes a plate and eagerly drinks the milk elixir. At first, the cat increases significantly ... but after 3 seconds, Tom becomes smaller than Jerry due to the wrong composition of the potion. Jerry hits the tiny cat in the face, some reaction occurs, and Tom becomes the size of a flea. The mouse takes advantage of this and punishes the little Tom, as it should: begins to drive him around the house with a fly swatter.

• This is one of five cartoons where Jerry beats Tom.
• In this cartoon, Tom has the penultimate claws on his hands for the last time.
• For the first time in the Tom and Jerry series, this cartoon shows how a character (here, a fly) dies on the screen.
• This is the only cartoon in which Jerry hits Tom many times.

• Dr. Jekyll and Mr. Mouse on the Internet Movie Database
• "Dr. Jekyll and Mr. Mouse ” on the Big Cartoon DataBase website