Gangsters and Lt. Grant look for a convicted crook's safe-deposit key.
A murder attempt is made on a pianist.
Hobos are suspects in a series of murders.
A button is the only clue to a murder.
A corpse is found hidden in a carousel.
A rich man becomes the victim of some greedy friends.
Lt. Grant sniffs something's fishy about the executor of an old couple's estate.
A war bride gets embroiled in a murder.
Grant tackles a year-old unsolved murder and robbery.
An ex-convict has started an honest business; now someone is trying to end it.
Charges and counter-charges abound as Grant looks into the blackmailing of a kindly woman.
Grant tries to convince a crook that the woman he loves is very dangerous.
Lt. Grant isn't convinced that a hot-blooded sculptor murdered the man who married his former sweetheart.
A lonely wife shoots at a prowler.
A murdered wife, an abandoned child and a disappearing blonde pit Grant against a clever woman lawyer.
Three friends have been getting blackmail notes written in violet ink.
Publicity hampers the investigation of a businessman's murder.
Romance and politics clash in a big city.
A blonde wearing an orchid is found murdered.
Grant boards a cruise to get evidence against a killer.
A man believes his daughter's life is in danger, but he's the one who gets killed.
A recorded appeal for help reaches Grant.
A lion stalks the winter quarters of a circus.
A frantic call catapults Grant into the world of teenage hot-rod enthusiasts.
The disappearance of an expensive cat is the first in a series of strange events.
Grant goes to sea to find an embezzler and killer.
Grant tries to find the man who shot a couple on a lonely road.
Grant turns up several suspects in the slaying of a young lawyer.
Grant investigates the murder of a blind war veteran.
Sherry Allen finds a body and a lot of trouble.
A dream, a suspicious fire and a secret marriage are the elements in a mystery that Grant tries to penetrate.
Strained relations in the Wilson family hamper Grant's search for their stolen jewels.
The daughter of a released convict tries to stop her father's revenge.
A burglar-proof safe is robbed.
The key to a murder is contained in a cross-word puzzle.
A businessman is the victim of a blackmail plot.
Grant attempts to solve a murder and crack a smuggling ring.
A strange cult is the object of a police probe.
The body of a woman is discovered blowing an automobile horn.
A woman who claims to be dumb, yet doubles her money, is mixed up in a murder.
A jockey, his wife and his boss form a romantic triangle. Then the woman is murdered.
Grant, searching for clues in a murder case, digs into the victim's past.
A fake newspaper sent to a couple is a reminder of something they'd rather forget.
Police find a reportedly empty house filled with people.
The clock on a campus strikes 13 and a student mysteriously disappears.
A resort town is the scene of a murder.
A man finds a money-laden wallet.
Was the "best friend" of a murdered blonde a man, a bank account or a diamond necklace?
Grant tracks an escaped criminal across the Mojave Desert.
Grant mans a stakeout to catch a bandit.
Angie Dickinson plays a cigarette girl murdered by a man in a perfect disguise.
A woman deep in a trance has apparently committed a murder.
Story of a gang of robbers that uses a little girl as its shield.
A con man is not clever enough to prevent his own murder.
The search for a missing derelict leads Grant through the slums of a large city.
A gambler has bet once too often. This time he loses ... his life.
Grant enters the world of art to find the killer of a famous painter.
A couple flee to Nevada without repaying a debt they owe the mob.
A clever crook seizes control of an auction house and operates it as a blind for his crooked activities.
A woman flees the scene of a crime, taking an innocent bystander with her.
Grant tackles a six-year-old missing-person case.
A lovely amnesiac, an attempted murder, mixed identities and an engagement ring are the elements in a case.
A returning GI finds that his wife has disappeared.