The Amazing Mr. Williams is a 1939 American screwball comedy film[2] produced by Everett Riskin for Columbia Pictures and directed by Alexander Hall.

[5] Maxine Carroll, secretary to the mayor,[5] waits impatiently for Kenny Williams, who gets called away by Captain McGovern on police business not long after he arrives.

Kenny has another date with Maxine, but this time the captain wants him to pick up Texas Buck Moseby at the jail and take him to the penitentiary by train.

The Phantom Slugger,[7] who has been fatally attacking random women on the street, has still not been caught, and the citizens committee is in an uproar about it.

Captain McGovern suggests a male policeman wear women's clothes as a decoy to try to catch the criminal.

Meanwhile, Maxine and Effie are planning a wedding for noon at the mayor's office, but Kenny is late as usual.

Kenny enlists Maxine's help in finding the person who purchased the liquor bottle found in Stanley's car, which leads them to the racetrack to arrest the real killer.