Cage of Evil 1960

Synopsis:

While investigating a diamond heist, disgruntled cop Harper falls for Holly, the top suspect's main squeeze. When she convinces him to kill her boyfriend and make off with her and the loot, they start down a treacherous path full of dark surprises.

Directed by: Edward L. Cahn
Written by: Orville H. Hampton
Runtime: 70 minutes
Tagline: Blonde Bait...In a Murder Trap!
Cast:
Ron Foster
Ron Foster
Det. Scott Harper (as Ronald Foster) 
Patricia Blair
Patricia Blair
Holly Taylor (as Pat Blair) 
Harp McGuire
Harp McGuire
Det. Murray Kearns 
John Maxwell
John Maxwell
Insp. Daniel A. Melrose 
Hugh Sanders
Hugh Sanders
Martin Bender 
Helen Kleeb
Helen Kleeb
Mrs. Melton