Mike Preston is a bitter man who despises Hugh Jamison because he mistakenly believes Jamison stole $100,000 from him and is responsible for him being crippled. Trying to entrap Jamison, Preston makes a mistake and is set up for murder by the real thief.

Aspiring screenwriter Herbert Simms submits his first teleplay to producer Charlie Corby who tries to use the manuscript as his own. Corby's scheme comes a cropper when he gets fatally whacked over the head with a whiskey bottle after a party. Herbert happens to be in the wrong place at the wrong time and is seen running from the scene of the crime. Guess who gets arrested for murder?

Young cop Jimmy Anderson, cousin of Lt. Anderson, and veteran Otto Norden come across a robbery at the Wilson Plastics Company while on patrol one night. A shooting occurs and Otto is killed. Evidence then points to Jimmy as having been an accomplice in the burglary and he is suspended from the police force. Then the night watchman at Wilson Plastics, a disgraced ex-cop, is found strangled to death. Lt. Anderson then asks Perry to look into things and defend Jimmy against all charges.

Della asks Perry for $25,000 for her friend Janet Brent, who is being blackmailed. Edward Franklin, an employee of Janet's husband, has staged compromising photos of her in a motel. At a party, Janet confronts Franklin and hits him with a small statue of a "weary watchdog." The police arrest Della when they find her driving Janet's car from the scene of the argument. Franklin is dead, struck three times on the head with the statue. Perry defends Janet knowing that if he loses, Della will go to prison as an accessory.

A wealthy woman is confronted by two girls who claim to be the daughters she was forced to abandon 20 years before.

On trial: the estranged wife of a professor who's written a lurid novel.

Attorney Sherman Hatfield is sought out by a blackmail-plagued industrialist.

Mason's client: a man declared legally dead.

Mason is hired by a sculptor charged with murdering the overbearing mother of his model.

A jealous husband is teased into a tizzy after being led on by his sister's lies.

This case has nothing to do with mosquitos but rather a hidden mine that could lead to a fortune. Plus murder.

Janice Barton is found guilty of the murder of her wealthy relative and sentenced to death. Can Perry find the evidence to clear her of the crime before the pellets in the gas chamber fall?

Crude but wealthy art connisseur Otto Olney throws a party to celebrate his purchasing a painting by famed artist Gauguin. Then a party guest, art expert Colin Durant, says that the painting is actually a fake. Olney then goes to Perry who decides to sue Durant for libel. Durant then claims he never said anything regarding the painting and the only witness, an art student named Maxine Lindsay, confirms his story. Perry then discovers the dead body of Austin Durant, fully clothed, in the shower of Maxine's apartment. Paul Drake then tracks down Maxine but the police are right behind him and they arrest her for murder. Guess who she hires to defend her?

Grover Johnson manages somehow to talk his much younger bride Eula into living with him on a barren spread of ranch land. Needless to say, Eula hates it and can't wait to sell the property. Along comes wealthy Texas Nelson Barcliff who's ready, willing, and able to purchase the property. But is this big Texan really who he appears to be? Or is it just an elaborate real estate swindle cooked up by Eula? Either way, both Eula and Barcliff end up dead and Grover finds himself charged with Eula's murder.

Mystery clouds Mason's search for the murderer of a photographer who was shot while a model pointed a loaded gun at him but didn't pull the trigger.

Sweet but ditzy Nancy Banks wants Perry to cash a bundle of winning racing tickets for her. There's only one problem: her former employer claims the racing tickets as his own. Nancy then gets in even deeper feces when she's charged with her ex-employer's murder.

A fire chief wants to bring a libel suit against a reporter who accuses him of burning down his own warehouse. Things get even worse for the chief when he's charged with murder.

Certain that her employer is plotting to murder his wife, housekeeper Nellie Conway launches a counterattack.

A kidnapping hoax leads to murder when the ransom note gets into the wrong hands.

Abner Gordon threatens to press charges if his niece doesn't replace the money she lifted from his safe.

Mason is summoned when Harvey Scott's efforts to retain temporary control of the family mining company lead to murder.

Attorney Joe Kelly agrees to represent Bill Jarvis, whose mother-in-law is trying to have his bowling alley shut down.

Reba Burgess's control of her late husband's mining company is threatened when a man turns up with a partnership agreement—signed by Burgess before he died.

An investment broker tops off a series of peculiar actions by commandeering a taxi to rob a bank.

The foundations of a large company are shaken when the chief engineer uncovers evidence of budget tampering.

A woman hires Mason to nullify a clause in her late husband's will that disinherits her if she reopens the investigation of her son's death.

In Hawaii to handle an investigation for a hotel chain, Mason and Drake uncover a murder.

Paulo Porro is a charming young man from Sicily with a clever scam for ingratiating himself with Italian-American families. But when he tries his charms on Enrico Bacio, Paulo runs into a problem. It seems as though there was bad blood between the Porro and Bacio clans back in Sicily. Bacio even believes that Paolo has come to kill him. When Bacio is later found with a file lodged in his neck, Paolo is blamed for the murder.

Police detective Danny Talbert's father dies from a heart attack caused by stress from the fact that he was into mobster Steve Radom for a $10,000 debt. Or so Danny believes. When Radom is killed with Danny's gun, Perry steps in to clear his name.

Della buys the diary of a drowned woman at an auction and after reading the entries becomes convinced that the woman's death was not a suicide as was ruled at the time. This leads Perry into a case involving an eccentric millionaire, his two scheming assistants, and a kleptomaniac gorilla.

Perry is paid a visit by a Dorrie Ambler who wants him to verify her identity. Shady private eye Phil Arthur has been paying her to frequent certain places around town and Dorrie thinks it's because she bears a strong resemblance to madcap heiress Minerva Minden. After some digging, Perry finds out that Minerva might have been involved in a hit-and-run accident and it appears as though Dorrie is being used to prove that.

Carla Chaney is caught seemingly red-handed at the scene of the murder of her ex-boyfriend. Perry agrees to take the case pro bono after three other attorneys drop out. Carla's only hope is an unseen woman she claims was also present at the scene. According to Carla, this woman had a sinister laugh.

Things aren't going too good for the self-styled candy queen, Claire Armstrong, these days. Boyfriend Mark Chester steals her candy formula in order to pay back his gambling debts and Harry Arnold is blackmailing her. Then there's cousin Wanda. She'd like nothing better than to see Claire convicted when Arnold is murdered so that she can takeover the business.

The Safeline Insurance Company notices an increase in heart attacks among their policy holders. The company suspects fraud and hires Perry and Paul to investigate. When Paul goes undercover as a construction worker, he almost doesn't survive the assignment.

Burt Payne owns 10% of a professional football team. His rich wife, Ellen, owns the remainder. Knowing that he's washed up and needing some quick cash, Burt tries to sell his share of the team to a group of investors and even gets a down payment from them. Ellen, however, is opposed to the deal. Then, after she meets with one of the potential buyers aboard a train, Burt is apparently killed in an explosion.

Test driver Pete Griston cracks up one of ace car builder Pappy Ryan's vehicles. Pappy accuses Havey Rettig of tampering with the car and files charges against Rettig and Griston. Then Rettig is killed and Griston is found standing groggily over the body.

Police Sergeant Dave Wolfe warns Joe Oliver to stay away from his kid sister, Susan. Now Susan's been beaten up in her apartment, Oliver has been shot to death, and Dave is being charged with murder.

Victor Montalvo, co-owner of the Golden Bear Club, gives a ride to a sweet young thing named Debbie Conrad who later attempts to blackmail him by threatening to claim he took advantage of her. Debbie is working the scam with her boyfriend, Rick Durbin, and Montalvo decides to pay them off. But before he can make the payment his partner in the club is murdered.

Barney Austin is the king of late night talk radio in Los Angeles. One night during his on-air rants, Barney gets a note to call his boss, Kevin Steele. While talking to Steele on the air, the audience hears Steele begin arguing with someone and then two shots ring out.

Chick Farley is a low rent, semi-talented golf pro at an exclusive country club. He now mooches off his wife's money and occasionally blackmails members of the country club in order to keep his position. One night, ole Chick discovers that someone has been stealing from the pro shop. He calls club member Hamilton Burger at his home to inform him of the theft. While on the phone, somebody takes a sand wedge and bashes in Chick's skull. Chick is no great loss to humanity but, as usual, the wrong man is charged with the crime.

An art dealer and his girlfriend are arrested for a two murders related to a series of hijacks. Paul goes undercover to ferret out the hijacking ring and Perry finds himself staring face down the barrel of a gun pointed by a killer even he never considered.

Things keep going from awful to good grief for poor Ethel Andrews. First she's left at the altar by her fiancé, Bruce Strickland, who also let's her take the blame for a $50,000 securities theft since her signature was on the transfer authorization. Ethel decides to leave town but nearly has an accident with a car driven by Peggy Sutton. Peggy, it seems, is on the run from a hired killer. Ethel foolishly agrees to swap identities with Peggy but then Peggy perishes in a car accident. Ethel then finds $50,000.00 in the trunk of Peggy's car and makes the mistake of informing Bruce Strickland who turns up murdered. Perry sends Paul Drake up to Lake Tahoe to find out about Peggy Sutton but it might be too late because the noose is getting pretty tight around poor Ethel's neck.

Retired general Roger Brandon is set to head an anti-crime commission to investigate racketeering in a notoriously corrupt town. Rackets boss George Emory claims to have compromising photos of Brandon's young wife, Laura. Emory threatens to launch a smear campaign against Laura unless Brandon refuses the assignment. Brandon calls Emory's bluff and accepts the assignment but then Emory turns up murdered. Guess who gets charged with the crime?

A nasty actor with a lot of enemies is murdered. Perry gets his accused killer off the hook but then HE turns up dead and an aging, eccentric actress is blamed for that one. Are there two murderers on the loose or are both the work of one person?