The police arrest a man climbing over the wall of a cemetery after midnight. He claims that he is being blackmailed and is following instructions he received by mail to leave $1000 on a certain grave. It turns out that he's not the only one who got a blackmail letter from the same person--calling himself "The Black Panther"--and it also turns out that all the recipients are connected to an opera company.

Sidney Blackmer
as Police Commissioner Thatcher Colt

Rick Vallin
as Anthony 'Tony' Abbot (as Ricki Vallin)

Byron Foulger
as Everett P. Digberry

Herbert Rawlinson
as District Attorney Bill Dougherty

Lynn Starr
as Miss Spencer

Barry Bernard
as Capt. Edgar Walters / Frank Galloway

Trude Rosen
as Nina Politza

Thornton Edwards
as Enrico Lombardi

John Ince
as Police Captain Mike Flynn

Martin Ashe
as Officer Murphy
CinemaSerf
As cheap and cheerful B-features go, this is actually quite quickly paced and entertaining. It all centres around wig-maker "Digberry" (Byron Foulger) who is apprehended up to no good in a cemetery after hours. His explanation makes little sense to the police officer - he is being blackmailed by the...