A detective (Edmund Lowe) trails a professor (Henry Daniell) who stole credit for his wife's research, then killed her.
| Actor | Role |
|---|---|
 Edmund LoweChristopher Cross | Christopher Cross |
 Florence RiceDeborah Reed | Deborah Reed |
 Nat PendletonPolice Sgt. Lucks | Police Sgt. Lucks |
 Henry DaniellProfessor Marvin Griswald | Professor Marvin Griswald |
 Sara HadenJanet Griswald | Janet Griswald |
 Dean JaggerAlan Shaw | Alan Shaw |
 Frank ReicherRudolph Brehmer | Rudolph Brehmer |
 Zeffie TilburyMrs. Nash | Mrs. Nash |
 Henry KolkerDistrict Attorney Pritchard | District Attorney Pritchard |
 Marla SheltonTonya Van Horne | Tonya Van Horne |
 Theodore von EltzJohn Lamont | John Lamont |
 Dorothy PetersonSusan Nash | Susan Nash |
 Harry DavenportDr. Reed | Dr. Reed |
 Johnny ArthurDr. Busby - Coroner | Dr. Busby - Coroner |