The 3rd Voice 1960

Synopsis:

Marian Forbes has been having an affair with her boss and when he drops her for another woman. In an act of jealousy and greed she convinces an acquaintance to murder her former lover and then impersonate him just long enough to get their hands on a large sum of money.

Directed by: Hubert Cornfield
Written by: Hubert Cornfield
Runtime: 79 minutes
Tagline: It'd diaboliKILL!
Cast:
Edmond O'Brien
Edmond O'Brien
The Voice 
Julie London
Julie London
Corey Scott 
Laraine Day
Laraine Day
Marian Forbes 
Olga San Juan
Olga San Juan
Blonde Prostitute 
George Eldredge
George Eldredge
Judge Kendall 
Tom Hernández
Tom Hernández
Desk Clerk