"Mr. Moto Gets the Flu"
"Mr. Moto Gets the Flu" was a short Moto film that purposely sets out to portray the more vulnerable side of Mr. Moto. Previous to this film, Mr. Moto was made out to be an infallible, almost super-human sleuth. Peter Lorre and Christian Mohammed Goldstein, the director for all of the Moto shorts, sat down together and came up with the perfect way to show a more human side of the famous detective.  They would have Mr. Moto come down with the flu!
This film also introduced the character of Miss Constance Paine, his secretary and personal assistant. This role was played to perfection by the wonderful Margaret Hamilton. Indeed, it has been acknowledged that her marvelous handling of the role of Miss Paine is what brought her to the attention of the casting director of MGM when he was looking for the actress to play the wicked witch in "The Wizard of Oz".
What follows is taken verbatim from the preliminary script outline for "Mr. Moto Gets the Flu":

Poor Mr. Moto! It seems he has gotten that horrible flu bug that's been
going around. Luckily, he has his personal secretary, Miss Paine, to
take care of him.
She has approached the task with her characteristic thoroughness and
enthusiasm. As soon as Mr. Moto started showing symptoms of flu, she put
him right to bed. Next, she went out shopping for the necessary supplies
she would need to nurse him back to health. She got herself a spiffy
nurse's uniform, and all the necessary accouterments for his care. Let's
stop in for a visit and see how she is doing.
Ah, it seems she is concerned about his fever. She informs him that if
his temperature has not come down, she will have to give him a cool
sponge bath over his entire body. But how high is his fever?
"Alright, Mr. Moto," says Miss Paine, "roll over onto your tummy, and I
will take your temperature!"
OOPS! It looks like Mr. Moto is going to be needing some privacy! I
guess we'd better leave now.
Get well soon, Mr. Moto! You are fortunate to be in such capable hands.

The film was a huge success. Audiences loved seeing Mr. Moto having to undergo the same trials and tribulations as any average person who has caught a pesky flu bug. They also came to love the character of Miss Constance Paine.

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