Road to Alcatraz

A rich but disliked elderly man invites his relatives to a family reunion at his home. Once the gathering is complete, he announces enigmatically that he intends to change his will before he dies. Before he can do this, he is murdered. His niece (Gynt), a detective story writer, has to put her theories into practice by solving a real-life murder mystery.

Americans Tommy Baldwin and Joe Dugan are hired to transport a fabulous diamond from Shanghai to San Francisco. They will be paid handsomely on success or killed on failure. The diamond is stolen as they take possession of it.

A crazed scientist invents a serum that induces a catatonic state in anyone who gets the injection. He uses the serum to paralyze his enemies, in order to bury them alive.

A New York City newspaper is sued for libel after reporting the wrong verdict in a murder trial.

When a beautiful young artist's model is strangled in her bed, Scotland Yard find themselves with three suspects -- her sinister ex-husband (Elwyn Brook-Jones), a sexually disturbed artist (Ballard Berkeley) and her violent new boyfriend (John Bailey), who is prone to unexplained blackouts.To catch the killer, the police must set a dangerous trap with the aid of a famous sculptress (Hy Hazell).

The relatives of a rich old woman unsuccessfully try to have her declared insane, so they can divide up her money. To show them that there are no hard feelings, she invites them to her estate for the weekend so she can decide to whom she actually will leave her money when she dies. Soon, however, family members begin turning up dead.

Detective Inspector Campbell (Gordon Jackson) looks into the murder of a teacher at a girls school where there are a number of suspects, including her colleagues and the married man she had been seeing.

A poisoned aspirin creates headaches for a woman who received the deadly pill from a stranger, then passed it on to her uncle.

Cosmo Jones, a correspondence-school detective from a small town, comes to the big city to offer his services to the police. He happens by where a gangster is killed by an opposing gang. Socialite Phyllis Blake is running around with gang member Tom and the opposing gang plan on kidnapping her. Cosmo is with Sergeant Flanagan when the attempt is made in front of a night club, where a bystander is seriously wounded in the gun-battle. Police Chief Murphy blames Flanagan for the shooting and demotes him. Cosmo, with the aid of a porter, Eustace and Flanagan's fiancée, Susan, tries to find the killer. Phyllis is finally kidnapped and Cosmo decides the act was committed by one of the two gangs. He has her father place an ad in the newspaper that contact has been made with the kidnappers. Each gang thinks the other is pulling a double cross, and one gang wipes out the other.

Jim Hanvey is a genial but top-notch detective who has retired to his country home. An insurance company hires him to find a missing emerald so they won't have to pay out the $100,000 for which the jewel is insured. It doesn't take him long to find the emerald, but he discovers that finding it was the easy part; the difficult part is getting it back to its rightful owner, and he winds up involved in a murder in which an innocent man is framed.

Two detectives investigate the strangulation murder of a man whom everyone seemed to like.

An ex-cop is suspected of murder after he is found with a dead woman. The private detective is on the run -- attempting to prove his innocence.

A private detective and his assistant are hired to find a missing husband by the detective's former girlfriend who dumped him. The case is quickly complicated by a sexy brunette, a missing bank executive, a castle in the desert, and a dead body with its "head blown off" but identified as the husband.

A car accident traps two men inside a car near the water. With the tide coming in, they discuss the circumstances that led up to the accident.

A struggling writer becomes the prime suspect in a murder investigation when his publisher is found dead in a manner mirroring one of the writer's proposed mystery storylines.

Cop Andy Doyle investigates a car-bombing murder and the killing of a sleazy modeling agency owner. Are they connected?

A female hitchiker is taken in by a family after a horrible car accident. While she recovers, she begins to unravel a murder mystery involving the woman of the house.

In a series of flashbacks, shows that attorney John Morland has given a lift to a hitchhiker who turns out to be a murderer. As a result, Morland himself is implicated in a killing. A pair of detectives discover that Morland has been having business problems and no end of difficulties with his wife Catherine. The trail of clues leads to a surprising revelation.

An innocent dancer is accused of murder after his shoe prints are found at the scene, but his wife follows the trail of clues to find the real perpetrator.

An estranged wife shows up after a nearly 7 years of disappearance -- thought to be dead, to prevent her husband from marrying his new love until someone kills her.