Rosie is a sweet, rich and generous woman, especially when is comes to giving money. Daughters, Mildred and Edith, are worried that she will spend all their inheritance, so they plan to have Rosie put away in a home and have her legally declared insane. When Daphne,(Rosie's devoted and caring grand-daughter), over hears their plan, she vows to help her grandmother win.

Mercenary daughters Mildred Deever and Edith Shaw contrive to cheat their widowed mother Rosie out of her millions. Alarmed by her purchase of the Los Angeles theater in which their father proposed, they incarcerate Rosie in an old age home and attempt to have her declared incompetent. To the widow's rescue, however, come granddaughter Daphne Shaw, old friend and lawyer Oliver Stevenson, and Stevenson's young assistant, David Wheelwright. At the trial the discouraged Rosie refuses to testify in her own defense. When Stevenson declares his love, however, she takes the stand, tricks her daughters into admitting her sanity, and wins the court's confidence.