A delivery boy for a flower shop, who thinks of himself as an amateur detective, finds out that his boss is mixed up with a foreign espionage ring.
| Actor | Role |
|---|---|
 Frankie DarroJimmy O'Brien | Jimmy O'Brien |
 Marjorie ReynoldsSusie Carey | Susie Carey |
 Mantan MorelandThomas H. Jefferson | Thomas H. Jefferson |
 Milburn StonePat Callahan | Pat Callahan |
 I. Stanford JolleyBresloff | Bresloff |
 George ClevelandLester | Lester |
 Lillian ElliottMrs. O'Brien | Mrs. O'Brien |
 Alex CallamFred Morgan | Fred Morgan |
 Tristram CoffinPhillips | Phillips |
 Joe DevlinMotorcycle Cop | Motorcycle Cop |
 Willy CastelloKurt | Kurt |
 Donald KerrCassidy | Cassidy |
 Cheryl WalkerPhyllis Benton | Phyllis Benton |
| MMaxine LeslieBlonde Nurse | Blonde Nurse |
 DeForest CovanJackson | Jackson |
 Edward HearnCallahan's Boss | Callahan's Boss |