Monkey Business plot
"It's some fun!"
dr. Barnaby Fultan (Cary Grant) is the boring scientist who works on a rejuvenation drug, without success. Until the chimpanzee he's working with breaks out and turns the lab upside down, accidentally preparing the formula Fultan has been searching for for years. Fultan and his wife (Ginger Rogers) try it out with some really strange results: like getting younger and younger with every new dose. Others also try this elixir, including his grumpy boss and his secretary (Marilyn Monroe). The result is complete chaos.