Chester Morris is "Boston Blackie" in this 1946 entry into the series. The Boston Blackie series is far superior to many others which seem to have less humor and move a lot more slowly. In this film, Blackie helps out a former girlfriend whose husband is recently out of prison - she's afraid he's going to kill her and their baby. Then the husband is murdered and Blackie is blamed, and he finds out his ex-girl has been using him as part of a plot to shake down her father-in-law for money so that she will give him the baby. Except it's not his grandchild; the child has been borrowed from a crook who has been cut into the scheme. It's up to Blackie to figure out all of this, keep a step ahead of Farraday and the baby out of the wrong hands.
"A Close Call for Boston Blackie" has a lot of humor in it as well as delightful performances from Morris, George E. Stone as The Runt and Claire Carlton as Mamie, The Runt's girlfriend. Viewers will also recognize Kathryn Card, who played Lucy Ricardo's mother and always called Ricky Mickey, at the apartment house reception desk. All and all, quite entertaining.