When Throckmorton P. Gildersleeve [Harold Peary] is selected to serve on a jury, he is thrilled at the chance to help his fellow citizens. The trial centers on Louie [Douglas Fowley], a local gangster charged with burglary, and Louie’s henchmen fear a conviction, so they decide to target a juror who might swing the vote in their favor. They pick Gildersleeve, and an anonymous note offering him $1000 (about $18,000 today) lands in the pocket of his suit before the day at court.
The note is discovered, rather than read aloud, by an observer—an event that kicks off a quiet, tense chain of misunderstandings and misdirections. After the courtroom proceedings, Gildersleeve remains the lone holdout for acquittal, a fact that heightens Margie Forrester’s concern. Nancy Gates portrays Margie, who tries to reach her uncle at the courthouse, only to realize that the jury is sequestered and will need a place to stay for the night. Margie’s fear that her uncle might have agreed to the bribe grows, and she presses the matter with a sharp, if uneasy, persistence.
To complicate matters further, Margie is dragged into a dangerous game when the cleaner’s owner, George Peabody, reads the note and covertly hints that he knows its contents, without tipping his hand to Margie. With the jury sequestered, a plan forms: Peabody coerces Margie into attending a dance with him that very night, breaking her other plans with her boyfriend [Russell Wade] to keep him waiting. The uncomfortable tension at the party unfolds as Gildersleeve, sensing pressure from all sides, talks the other jurors into voting for acquittal.
The following day, the money—the payout intended to influence the verdict—lands in the hands of the judge as a supposed donation. Louie retrieves the funds, and the money is stored away in the judge’s safe; Gildersleeve, still believing it to be a legitimate contribution to the USO club he chairs, carries the money to the judge’s home and attempts to place it safely inside. When the judge reveals the real situation and shows him Louie’s note, Gildersleeve realizes the true nature of the funds and resolves to recover them.
In a tense turning point, he becomes captured by Louie and his henchmen, who hijack a stolen police car to carry him away. They intend to execute him in the countryside, but Gildersleeve’s quick thinking changes the odds: he uses a police radio to broadcast the car’s conversation, letting the criminals expose their own guilt. The broadcast provides enough evidence to clear Gildersleeve of any wrongdoing, and the pursuit ends with a crash that brings the criminals to justice. In the end, the misled jury, the bribe scheme, and the dangerous underworld plot are all laid bare, and Gildersleeve is exonerated, vindicated by timing, wit, and a bit of luck.
