A Blueprint for Murder (1953)
Polly Cameron: [off-screen] Don't touch my feet!
Whitney 'Cam' Cameron: [narrating] On October 10th 1952, Lynne Cameron was convicted of murder in the first degree. Her sentence: life imprisonment. And so to the names of Madeleine Smith, Florence Maybrick, Lydia Trueblood, and all those other young, beautiful, but evil poison murderers was added that of Lynne Cameron.
Whitney 'Cam' Cameron: Where is Polly Cameron's room?
Dist. Atty. John J. Henderson: It's one thing for us to believe someone's guilty, but it's quite another to prove it beyond a reasonable doubt.
Det.ective Lt. Harold Y. Cole: That's a must for any conviction.
Det.ective Lt. Harold Y. Cole: If we don't come up with new evidence, we're dead!
Whitney 'Cam' Cameron: So's the boy.
Dist. Atty. John J. Henderson: It all adds up, Mrs. Cameron. You were the only one with the motive and the opportunity of getting the poison to the child.
Lynn Cameron: You think that I did this thing? That I killed Polly?
Dist. Atty. John J. Henderson: It's beginning to look that way, Mrs. Cameron.
Lynn Cameron: But I loved the child as if she wee my own! I couldn't have done it!
Dist. Atty. John J. Henderson: Believe me, Mrs. Cameron, you'll be making it much easier on yourself if you just tell us the truth now.