Harry Lipkin is a tough-talking, soft-chewing, rough-around-the-edges, slow-around-the-corners private investigator who specializes in the sort of cases that cops can't be bothered with. His latest client, Mrs. Norma Weinberger, informs him that someone is stealing sentimental trinkets and the occasional priceless jewel from her; someone she employs, trusts, cares for, and treats like family. It is up to Harry to figure out whodunit before the thief strikes again.