I've seen the Boston Blackie TV Series, but didn't know there were movies, as well. I finally got a chance to watch a number of the Film Series, and I find this one, the weakest plot of them, all, but one of the funniest in the bunch. In another of his unusual and fascinating capers, Boston Blackie (Chester Morris) gets entangled with a former girlfriend Gerry Payton (Lynn Merrick) when Blackie and his sidekick, the Runt (George E. Stone) rescue her during an attack in the street right in front of their building. They carry in the unconscious woman to the house. When they open the bedroom door we see the main twist that this series entry has to offer: a baby! The baby is very cute, and it's funny to see Blackie and Runt try to take out of it. It's somewhat comical that the baby sounds don't really match the baby. There is a sound edit that supposed to be a baby yawn, but its sounds like an adult male in one scene. The baby's mother Gerry ask the two to protect the baby from her recently paroled husband. The Runt takes the baby to her girlfriend Mamie (Claire Carleton). Blackie takes on the husband when he returns and disarmed him. Before he can question him, an assassin kill the husband, and blackmailing Blackie for murder and kidnapping. The chase is on, with Inspector Farraday (Richard Lane) and Sergeant Matthews (Frank Sully) at their heels. This fast-paced, surprising mystery wraps up in a tidy 60 minutes, but don't feel embittered. It's full of witty writing, comedy, and action to pack it. There is barely any slow moments in the film. The problem with the film is that, its plot is very low grade and simple. It also follows the same similar plot line as the other movies. If you follow the film series, you'll easily guess, Blackie will be accused of the murder and the Inspector will do the accusing. There a lot of dumb moments in the film as well like Runt leaving a baby by himself in Mamie's house when he get milk from a milk woman with a deep voice while leaving a woman's dress. Once again, Sergeant Matthew and Inspector Farraday are idiots, and makes you wonder how on earth did they ever became cops. Why on earth, did Matthew agree to a wrestling match with Blackie? I love the scene with the Inspector talking to Runt over the phone. Mamie, maybe. I don't why director, Lew Landers hired Lynn Merrick twice to play a similar role in the film series. She just played a character pulling a similar deception on them in Boston Blackie Booked on Suspicion! (1945). Honestly, Blackie does some dumb things to, like act like a dead man to escape, and put pajamas over his clothes to fool the cops. At least Blackie didn't feel it obligatory to don black-face in this outing just his typical old man disguise for 5th time, again. In a nice touch, Matthews turns up in the same disguise which is hilarious. The film series try to follows the far more successful Thin Man series starting William Powell in production, but fail to make their film series different to each other in each movie. It's so repeatable and predictable. Can Boston Blackie and his partner The Runt figure out the plot, clear Blackie's name, rescue the child and put the criminals into the hands of the incompetent police?