A famous detective is invited to a swanky party at an elegant mansion, but before the night is over he finds himself involved with gangsters, blackmail and murde

John Miljan
as Bill Holt

Irene Ware
as Jane Maxwell

Iris Adrian
as Muriel Randel

Noel Madison
as Gus Colleti

Oscar Apfel
as Reuben Marshall

Barry Norton
as Tom Randel

Harry Holman
as Campbell Snowden

Betty Blythe
as Ann Randel

James P. Burtis
as Mike 'Jeff' Jefferies

Lew Kelly
as Police Sgt. Olsen
CinemaSerf
This is quite a reasonable effort with Reuben Marshall as a detective who is invited to a posh party whereupon he meets some riff-raff and soon blackmail and murder are the order of the evening with plenty of suspects. The plot isn't half bad, and though the characters are a tad flat, it moves along...