The plot involves a kidnapped baby, a ransom, extortion, murder and all the usual ingredients that are mishandled by the police on the trail of a crooked lady (LYNN MERRICK) and her criminal pals responsible for all the trouble.
All the trouble, of course, is pinned on Boston Blackie, CHESTER MORRIS in his usual "old man" disguise, who wouldn't fool anybody--but, hey, this is a movie. He poses as the man willing to pay ransom money to get the baby back and it works, in time for a snappy ending.
The baby is a cute little boy, well-behaved on camera most of the time and given numerous close-ups as he peers back and forth at the grown-ups handling him. Inspector Farraday and his dumb sergeant are more bumbling than ever while the accent is on comedy relief more than mystery.
Summing up: Entertaining, but fluffy entry in the Blackie series, strictly routine.