"The Unknown" was the final entry in Columbia’s I Love A Mystery series. A woman hires two detectives to keep her alive long enough to claim her inheritance.
as Rachel Martin
as Jack Packard
as Nina Arnold
as Reed Cawthorne (as Robert Scott)
as Richard Arnold
as Doc Long
as Edward Martin
as Ralph Martin
as Phoebe Martin
as James Wetherford (as Robert Stevens)
as Joshua (uncredited)
