The Mad Miss Manton - Plot

Plot

At 3:00 am, Melsa (Barbara Stanwyck) takes her little dogs for a walk. Near a subway construction site, she sees Ronnie Belden run out of a house and drive away. The house is for sale by Sheila Lane (Leona Maricle), the wife of George Lane, a wealthy banker. Inside, Melsa finds a diamond brooch and Mr. Lane's dead body. As she runs for help, her cloak falls off with the brooch inside it. When the police arrive, the body, cloak, and brooch are gone. Melsa and her friends are notorious pranksters, so the detective, Lieutenant Mike Brent (Levene), does nothing to investigate the murder. Ames writes an editorial decrying Melsa's "prank", and she sues him for libel.

Melsa and her friends decide they must find the murderer in order to defend their reputation. The resulting manhunt includes searches of the Lane house, Belden's apartment, Lane's business office, and all of the local beauty shops; two attempts to intimidate Melsa; two shooting attempts on her life; a charity ball; and a trap set for the murderer using Melsa as bait. During this time, the women twice attack Ames and tie him up, Melsa's friend Myra enthusiastically flirts with Ames, and their friend Pat eats incessantly. In the course of these events, the following facts emerge:

• George Lane has been out of town for a week.
• Sheila Lane hasn't been seen since the day of the murder.
• Sheila and Belden may be having an affair.
• Belden's apartment contains the brooch, a knife just like one used to intimidate Melsa, and Belden's dead body.
• Lane's body is found in Belden's car.
• George Lane left an insurance policy with his business partner Mr. Thomas as beneficiary.
• Thomas has been going broke.
• Someone may have been blackmailing Lane.
• Sheila was once married to a convict named Edward Norris.
• Norris was at a hockey game at the time of the murders, but left the game for ten minutes.
• Norris has a job working for the subway.
• Traveling from the hockey rink to the Lane house and back requires more than ten minutes using all standard forms of transportation.
• George Lane recently lost money gambling.
• Sheila Lane was hiding from the killer.
• Sheila and Belden met at the Lane house after Lane was killed. They couldn't call the police without exposing their affair, and Belden was killed while moving Mr. Lane's body.

While Brent repeatedly accuses innocent people based on incorrect theories, Melsa deduces that Belden removed the body and cloak from the Lane house before the police arrived. Near the end of the film, an escaping would-be killer leaves behind a piece of tar paper, which reminds Melsa of the subway construction site. Returning to the site, she finds a fast electric cart on the track. This is how Norris made his way to and from the crime scene in ten minutes. Norris is captured after confessing to the murders and briefly holding Melsa and Ames at gunpoint.

During the film, the relationship between Melsa and Ames evolves from sharp animosity to love and marital engagement. Melsa appears to be hostile toward Ames during most of the film, while he almost immediately decides that he's going to marry her and begins to woo her aggressively. She stabs him in the leg with a fork in retaliation for a treacherous trick he played on her, but they have a friendly chat early in the story, and a longer, more heart-to-heart conversation later. After the police rescue them from Norris, the film ends with Melsa and Ames planning their honeymoon.