The Secret Heart is a 1946 American drama film directed by Robert Z. Leonard and starring Claudette Colbert, Walter Pidgeon and June Allyson.

Lee (Claudette Colbert) is engaged to marry Larry Addams (Richard Derr), a spendthrift widower with two children, son Chase (Robert Sterling) and daughter Penny (June Allyson).

Lee sends Chris away and moves the family away from the farm, to New York where she takes a job to pay off Larry's debts, and withholds the truth from Penny, wanting to shield her from the stigma of scandal.

Ten years later, Penny, who behaves strangely, has dropped out of school and plays the piano incessantly for her father's memory when nobody else is around, is the patient of psychiatrist Dr. Rossiger.

The doctor advises that they move back to the farm for the summer, since that is where the death occurred, and he believes that confronting the past will help cure Penny.