The Locket (1946 film)

A respectable-looking man appears unannounced and uninvited at an upper crust wedding at a Park Avenue residence in Manhattan. He asks for the groom, John Willis, to be summoned. He is Harry Blair, a psychiatrist, and the sobriety of his appearance, speech, and manner lead to his acceptance. He recounts in a series of nested flashbacks a tale of how Willis’ fiancé and Blair's ex-wife, Nancy, is not only a kleptomaniac, inveterate liar, and murderer but is also unpunished for any of her crimes.^[3]

Apparently all her misdeeds result from her being falsely accused of stealing a family heirloom as a child. Blair recounts that Nancy first dates then splits up with an artist, Norman Clyde, who contacts Blair on the eve of the execution of the man convicted for a murder she committed and he helped conceal. Unaware of any of this until told by Clyde shortly into his hasty marriage to Nancy, Blair is skeptical and recommends Clyde seek counseling for his delusions. Instead Clyde jumps out a window of Blair’s upper story office.

Blair seeks to put the doubts Clyde sowed behind him, but finds his own reasons for questioning Nancy's veracity. When, five years into their marriage, he finally is faced with the truth of her serial thefts and compulsive deceits she has him fraudulently committed to a mental institution. Some unspecified time after divorcing him she becomes engaged to Willis.

It is unclear whether she recognizes he is the son of the woman who had accused her of thievery, and that her childhood bete noir is set to become her mother-in-law.

In spite of Blair's passion in recounting the details of the previous decade, an increasingly unsteady Willis remains determined to see the wedding through. The bridesmaids attend to Nancy as the ceremony nears.

Dressed in her gown and veil, Nancy is gifted a family keepsake passed down over three generations of Willis women - the same heart-shaped golden locket that had once been her childhood downfall, now affectionately clasped around her neck by the very same woman who had tormented her. Overwhelmed, she is beset by hallucinations of her sordid past and collapses physically and mentally during the wedding march. In the aftermath she is committed to a mental institution, with her ex-husband counseling her fiancé and his mother to show her both patience and compassion.

• Laraine Day as Nancy Monks Blair Patton
• Brian Aherne as Dr. Harry Blair
• Robert Mitchum as Norman Clyde
• Gene Raymond as John Willis
• Sharyn Moffett as Nancy, age 10
• Ricardo Cortez as Drew Bonner
• Katherine Emery as Mrs. Willis
• Helene Thimig as Mrs. Monks
• Reginald Denny as Mr. Wendell
• Nella Walker as Mrs. Wendell
• Henry Stephenson as Lord Wyndham
• Lillian Fontaine as Lady Wyndham
• Myrna Dell as Thelma
• Wyndham Standing as Butler (uncredited)

• Hume Cronyn originally bought the Norma Barzman screenplay to produce and direct the film with his wife Jessica Tandy in the lead role, but later sold the rights to RKO Pictures, which then assigned Gibney to rewrite the screenplay. The original Barzman screenplay is in the Cronyn-Tandy papers at the Library of Congress.^[4]
• The interiors used for the house of Mrs. Willis appear to be the same as those used for the house of Alex Sebastian (Claude Rains) in Alfred Hitchcock's Notorious, released by RKO in September 1946.^{[original research?] [citation needed]}