This is the second to last Lone Wolf movie starring Warren William. And, like the rest of them, it's well worth your time.
When the story begins, Lanyard gives a lift to a standed lady. After they drop her off, his manservant Jamison announces that he's stolen the woman's purse! Since Lanyard is a REFORMED criminal, he then heads back to the lady's home to drop off the purse...only to find the place empty except for a dead body! You know from an earlier scene that he was a blackmailing jerk...and so his being dead is no surprise! As usual, the cops want to arrest Lanyard for the crime and, as usual, he escapes to investigate it on his own and prove his innocence.
While this film is very familiar, this is not a bad thing as the Lone Wolf series was quite popular and a B-movie, like the Charlie Chans, Boston Blackies and the rest. Blore, as usual, is wonderful in support and it's well worth your time...something I'd say of all the Lone Wolf films.