Jeanne Dante stars as precocious 13-year-old Judy Widdell, a devoted fan of dime-novel detective stories. When a real murder occurs in the vicinity, Judy insists upon playing sleuth, dragging teenaged astronomer Tom Fenton (Kenneth Howell) into her Sherlock shenanigans.
Jeanne Dante
as Judy Widdell
Kenneth Howell
as Tom Fenton
Martha Sleeper
as Nancy Fairbrother
Alan Mowbray
as Archibald Fenton
Walter Catlett
as Duffy
Charles Williams
as Kasky
Margaret Irving
as Aunt Jessica
Murray Kinnell
as Morris
Spencer Charters
as Gilroy
Rollo Lloyd
as The Tramp