In the 7th film of the "Crime Doctor" series based on the radio program, Dr. Robert Ordway is summoned to take attend a diabetic, and gives an injection of insulin taken from a bottle in the patient's pocket. The man dies and Ordway discovers that what he thought was insulin was really poison. Oops! Two other people are murdered before Ordway discovers who replaced the insulin with poison and what the motive was
A German village is stricken by a series of murders that appear to be the work of vampires.
A film producer is found murdered on a ship, and among the suspects are a young woman whose mother was mistreated by him and his recently fired electrician.
A guilt-ridden man blames himself for his wife's death and secretly pays an assassin to kill him. But then he finds out that his wife isn't dead at all. And now the assassin is on his trail, with no way to call off the hit.
A dying millionaire marries his nurse for companionship, only to experience a miracle cure.
The Crime Doctor gets involved in the case of the poisoning of a wealthy industrialist.
Working undercover, Rangers Bob and Wally arrive to take up ranching. Out to stop them is Bill Nash and his men. When Bob plans to file on a ranch, Nash finds out and heads for the Registrar ahead of him.
In this drama, a trucker's business is nearly destroyed after he is wrongfully accused of killing a policeman with whom he recently quarreled.
George Hollister, crack investigator for the NYC police, is assigned to run down the enemy aliens who dynamited a Detroit munitions plant. The trail takes him to a customs inspector who is known to have honored fake passports provided by Leon Fenten, chief henchman of Drexel Stuyvesant who heads the sabotage ring. Aided by his partner Ray Nolan. Hollister arrests an agent named Reed and takes his place using the fake passport. As Reed, he is met by Karol Roy, an innocent assistant, who takes him to Fenten. Working undercover, Hollister is still unable to learn the name of the head man, not even from dumb gang-member Hank Kircher. Stuyvesant warns Fenten of his suspicions about "Reed" and the latter gives Hollister an assignment as a test.
A drifter claims the money in an old bank account. Soon he finds himself the target of two men who turn out to be the sons of the man's old partner, who is now in prison because of a conflict with him over the money in that account.
A deranged artist who may have murdered his wife is investigated by the Whistler.
Silent screen favorite Madge Bellamy starred in this low-budget melodrama written and directed by character actor Alphonse Martell. In love with a rich customer, Count Albert Valraine (Theodore Von Eltz), salesgirl Suzanne Ricord accepts his engagement ring, but when she fails to understand "the rules of the game," as he puts it, the caddish Valraine demands that she return the bauble.
A young actress hits Hollywood determined to be a movie star and runs into a lot of roadblocks along the way.
The evil and masked "Gargoyle" is sabotaging all of America's industrial plants. It is up to the Spider to save the country.
A woman uses a deck of cards to predict death within 24 hours for a stranger sitting at a bar, then tries to help him remember who he is based on items in his pockets.
A criminal psychologist treats an artist whose blackouts coincide with a series of murders.
Western featuring a thrilling stagecoach race.
Johnny Eaton, trouble-shooter for an American oil company drilling in China, leaves his bride-to-be to head for the Orient and straighten out problems at the inland-concession site his company controls.
Bank teller Barry Webster is driven to stealing bank funds by his mother-in-law who continually nags him about forcing her daughter Muriel to live in poverty...
A criminal psychiatrist investigates the murder of a two-time widower.
