It's Red's first starring role and he plays it fairly straight only sometimes mugging it up in ways that would become his comedic trademark. It's an excellent supporting cast, especially the unsung Don Costello as the henchman with a bad case of nerves and unsteady loyalties. And whose inspired idea was it to walk the thuggish-looking Hilda (Mariska Aldrich) through several scenes, allowing Red to get off some choice one-liners, ("Didn't I see you on 'Wrestling' last week."). Still, I'm curious why there're two leading ladies instead of one. Grey's character "Fran" seems unnecessary to the comedy set-ups and the storyline, so perhaps there's an inside story on this odd bit of doubling-up.
In my little book, the movie's only fitfully funny, mainly because the two comedy set-ups (the secret room and the radio trick) go on too long and lack the intensity of Red's better comedies. As other reviewers point out, the best parts are the many choice throwaway lines that sometimes fly fast and furious, so keep your ear cocked. All in all, this first of the "Whistling" series is not the best, but it does present a chance to catch one show-biz's brightest comedy acts developing his way up the Hollywood ladder.