Once a jewel thief always a jewel thief? Yes and no. Yes if you consider the fact that Michael Lanyard also known as the Lone Wolf once retired from the "trade" but relapses back into his old habits when he is tempted by the emerald pendant of beautiful socialite Marcia Stewart. The trouble (?) is that he falls for the belle and he soon gets more interested in getting the girl than the jewels that adorn her. What he wants now is to return the pendant but a rival gang interfere and force him to take part in a big-time caper.

Directed by: Roy William Neill
Written by: Bruce Manning & Lionel Houser & Joseph Krumgold
Runtime: 68 minutes
Tagline: HE'S BACK - with his taking ways!
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Cast:
Melvyn Douglas Melvyn Douglas
Michael Lanyard 
Gail Patrick Gail Patrick
Marcia Stewart 
Tala Birell Tala Birell
Liane Mallison 
Henry Mollison Henry Mollison
'Mal' Mallison 
Thurston Hall Thurston Hall
Inspector Crane 
Raymond Walburn Raymond Walburn
Jenkins