Mason gives Della Street two weeks' vacation! That is, it was supposed to be a vacation, but Della turned it into a busman's holiday. Target of interest was a well-stacked blonde - one who incredibly stashed away five enormous meals a day.

A dead man in the kitchen, gas fumes permeate the house, a duck seems to be drowning in the fishbowl, but it didn't die. Maybe that fact has something to do with murder? John L. Witherspoon, a wealthy patrician, is loath to let his daughter marry Marvin Adams, the son of a convicted murderer, something Marvin's mother managed to keep a secret - until now. To set the love-struck lass straight, Witherspoon engages Perry Mason to weigh the 20-year-old evidence that sent Marvin's father to the gallows, and prove that the young man is kin to the murdering kind.

Successful florist Mildred Faulkner finds that the flower business is no bed of roses when arch-competitor Harry Peavis secretly buys stock in her small, family-owned business. To keep from being muscled out of her own company, Mildred goes to Perry Mason. But the legal eagle is stymied when Mildred's company is plundered by her brother-in-law to pay off gambling debts. The money trail leads to a nightclub hostess and her boss. When both are found dead, the trail of evidence leads back to Mildred.

Poker-faced Nellie Conway, the nurses bed-ridden Elizabeth Bain, brings trouble when she calls on Perry Mason with a glass phial containing four pills which she suspects are poison. Her employer, Nathan Bain, she says, had promised her money to give them to his wife. But when Mason has one of the pills analyzed it is found to consist of acetylsalicylic - in other words good old-fashioned aspirin. Is Perry Mason's client a hoaxer, a psychopath, or something trickier?

In the dead of night, a thick fog lies over the black waters. You are aboard a fancy yacht full of fancy people who loathe one another. Suddenly you hear...A scream! A splash! A shot! The fateful cry, "Man Overboard!" And the next thing you know, you find yourself clutching a beautiful woman wearing only a flimsy nightgown. In her hands she holds a gun. That's the predicament in which Perry Mason suddenly finds himself. But that's only the beginning.

Helen Cadmus was dead - but how had it happened? Suicide, most people said. She jumped off that millionaire's yacht in a fit of despair, her body was never found, and the case was closed. The story was too neat to suit Perry Mason. It didn't add up. Somebody was concealing the truth about Helen's death, and how was going to uncover it even if it killed him.

Who killed Philip Rease? Peter Kent was known to be a sleepwalker and a bloodstained knife was found under his pillow. There were people who would like to see Peter Kent out of the way, but would they frame him for murder? And would that explain the reason for Rease's death? It was another case full of traps for Perry Mason.

Perry Mason had no hesitation in defending Albert Brogan, a broke ex-salesman against a charge of robbery. He's counting on the testimony of the nightclub hostess Martha Lavina to clear him. She had most of the requirements for a good professional hostess, and one was an innocent face. That, plus various other attractions, made her a formidable challenge as she faced Perry Mason on the witness stand.

The blonde wandering nude at the Remuda Gold Club tells Perry Mason a strange story. She says that while she peacefully sun-bathed near the course, someone made off with her Cadillac, her trailer, and all of her belongings - including her precious diary. The woman blames the police who suspect her of having stashed away nearly half a million dollars allegedly stolen by her father, who is now in prison. She swears that both she and her father are innocent. So who is bankrolling her leisurely lifestyle?

After catching his shady son-in-law, Jack Hardisty, in the act of embezzling, wealthy banker Vincente Blane plans to hang him out to dry. Then murder turns Blane's restful mountain retreat into Hardisty's final resting place. When the evidence points to wronged wife Millicent, her father makes a point of calling in Perry Mason. And it's up to the legendary legal eagle to unravel the case's most baffling mystery: a buried clock at the murder scene.

On his way to finding out, Mason meets Mrs. Milfield, a barely distraught widow, and a slew of suspicious characters all intimately connected to the recently deceased, a man murdered on someone else's yacht. As the surprising scenario unravels, it takes a sharp mind like Mason's, the savvy of his secretary Della Street, and the legwork of investigator Paul Drake to pull all the clues out of the water before the case sinks like a deadweight.

When Matilda Benson solicits the help of Perry Mason, her request seems simple enough: cruise to a gambling ship moored just beyond the twelve-mile limit and buy back the IOUs signed by Miss Benson's niece. But after Mason reaches the floating casino, he discovers problems aplenty - most notably the ship's owner with a bullet hole through his head. Strangely enough, Matilda and her niece are also on board that night...when someone tosses a gun over the railing. Does Perry Mason's client have something to hide?

A waitress in a favorite restaurant of Mason's runs out in the middle of the lunch rush, leaving behind her pricey mink coat. But this is only the first question in a cop-killer case that traps Mason's client with both an impossible story and the murder weapon. With Perry as a prime suspect with a blazing gunpowder trail that leads straight to the heart of the police department....

After her well-to-do Aunt Sarah is caught shoplifting, Virginia Trent is convinced she needs to seek psychiatric help for kleptomania. So why does Virginia turn to legal eagle Perry Mason? Because a cache of valuable diamonds - left in Sarah's care - has suddenly vanished into thin air. Virginia thinks Sarah swiped the stones, but gem dealer Austin Cullens begs to differ. In fact, he's prepared to forgive and forget - until he is mysteriously murdered and Sarah is caught running from the crime scene.

Lorraine Elmore is a well-to-do widow who's ready to marry again. But nervous Linda Calhoun is certain that the man her aunt Lorraine has fallen for is a fortune-hunting Bluebeard who's out to make a killing - in more ways than one. Perry Mason allays Linda's paranoia - until Detective Paul Drake digs up enough dirt to convince the lawyer that dashing, mysterious Montrose Dewitt is digging a grave for his bride-to-be.