The problem with "Deadly Duo" is that the script idea is very good and should have been the basis of a nice film noir drama. Unfortunately, the film just isn't that interesting and feels quite flat.
When the film begins, a rich old lady (familiar TV character actress Irene Tedrow) meets with a young lawyer and offers him a very enticing proposition. It seems that her son married some lady a few years back and since then, he died and she has been left with a kid...her grandkid. If he can manage to convince the daughter-in- law to give her custody, she'll pay the lawyer a bundle.
When the lawyer visits the mother, she seems like a decent person and a perfectly good mother. Not surprisingly, she won't sell her kid and tells the lawyer to take a hike. But, the lady has a nearly identical sister and she and her sleazy boyfriend concoct a plan to kill her and make it look like an accident. Then the new guardian, this sister, could sell the kid!! What's next? See the film.
I am NOT saying this is a bad film but the suspense wasn't handled properly. The ending came too quickly, seemed too pat and wasn't entirely satisfying.
