Perry's client is menaced by a car driven by a hooded man, whom she shoots at with a gun that was planted in her room. When the guy winds up dead from a bullet, Perry confuses matters by firing an identical gun later at the scene.
A man's wife is divorcing him after he is caught sleep walking with a knife near her bed. When his stepbrother is found dead stabbed with the knife, he is charged with murder and is accused of using his sleepwalking as a cover-up.
A wealthy woman hires Mason to buy stock in her husband's land company, hoping to force his mistress out. But her plan goes awry when she is charged with the murder of her husband's business partner Mason bought the stock from.
Perry Mason, Della Street, and Paul Drake head to a small town to defend a young man who is charged with poisoning a blackmailer. They learn the man's father was executed for killing a man in the same town eighteen years earlier.
An impetuous niece who demands her trust fund be released comes to Perry Mason for help. But it's her boyfriend who needs defending when he is charged with murdering her controlling uncle as Perry learns their real situation.
The owner of a lucrative orchid business is charged with murder after her husband loses stock shares in a poker game to a sleazy ex-con. When the hostess at the game calls to say she was poisoned, Perry and his team spring into action.
Sam Burris awakens his wife Betsy, saying he heard a shot at a neighbor's house. Through binoculars they spy Belle Adrian prowling about the house. Fortunately, Perry Mason on vacation comes to Belle's aid when she is charged with murder.
Fay Allison and her roommate Anita are found unconscious by Fay's aunt, Louise Marlow, who calls her attorney Perry Mason in desperation. In the girls' apartment Perry and Della discover a key that leads them to the body of Carver Clement.
A man picking up a young woman hitchhiking tries to help her but the actions backfire when he finds himself the victim of blackmail. The man's business partner was also involved with the woman and murdered for which he is charged.
Ed Davenport, on his deathbed, accuses his wife of poisoning him, then he expires. When Tragg arrives to investigate, the corpse has vanished, only to be found later, buried in a slit trench several miles away.
Martha and Rita show up at a beauty salon answering to the same name "Mrs. Bradford." Their husband Joe turns up dead on his boat, Martha is charged with his murder, and a candle on the table is leaning about twenty degrees.
While on a fishing trip, Perry Mason and Paul Drake pull a beautiful woman out of the ocean. In her possession is a note she retrieved from her employer, accusing him of killing his rich aunt during a storm on their yacht.
Perry and Della are enjoying a quiet dinner at Morey Allen's restaurant when a waitress suddenly runs out and is hit by a car, shots are fired, and Perry is left holding a moth-eaten mink with a pawn ticket hidden in it.
Perry is awakened in the middle of the night by the phone. A strange man says someone has been murdered and he has two $1,000 bills as a retainer, as well as half of a $10,000 bill that will serve to introduce Perry's mysterious client.
When Perry Mason finds some fans and shoes that belong to a fan dancer, he places an ad that several people mistake for a missing horse. Not only does another fan dancer show up, but so does her husband...dead, leaving Perry confused.