Mildred thinks she's witnessed a murder, and Sally receives a strange gift in the mail: film of a satanic ritual. More gifts reveal someone has it in for Mildred and a yen for Sally.

Mac switches places with Claudio Manton, a hood with a striking resemblance, to intercept stolen gold trans-shipped from France via Portugal and Mexico.

The wagers of sin. Mac is out to retrieve a set of diamonds swiped from his girl in Vegas.

Up against a hit man who announces himself.

A mysterious note in a football begins a case.

After a model commits suicide, Mac investigates her lonely life.

On moving day, Sally discovers a dead body in a moving barrel. When she leaves to tell Mac, the barrel disappears. What happened to it?

Mac's old football squad is being eliminated one by one.

Commissioner McMillan celebrates an old friend's wedding, but the honeymoon ends when the bride is murdered, and the intended victim may be closer to home.

Mac is away on a fishing trip when his house is blown up by a would-be assassin. Presumed dead, he investigates.

The case is clear, according to the Deputy D.A., but Mac has his doubts.

After the crosswords... a woman's husband is kidnapped, and her dog.

A composer is up against it, and Sally's somehow connected to him.

The mob abducts Mac and replaces him with a surgically-altered lookalike, to liquidate a squealer in a tightly-guarded hospital.

A valuable necklace under the eyes of Mac and Sally at a masked ball.

A phiz for the fuzz. Sally becomes the prey of a jewel thief out to dispose of witnesses.

Sally is kidnapped at an art museum. The ransom: a priceless painting owned by Spain that they are unwilling to relinquish. Mac's only clue takes him back to the day he proposed to Sally.

A man is done in by his wife, but he's not done yet. Evidently his ghost is unquiet.

It's off to Scotland to see the laird and the loch, where the game's afoot.

A temperamental tennis champion is suspected of murdering a newspaper magnate who had him suspended.

A WWII intelligence colleague, long since thought to be dead, turns up and is murdered.

You pays your money, you takes your choice. While on an airline flight, Mac witnesses passengers dying mysteriously.

Strange accidents surrounding a thoroughbred horse suggest its owner, an old family friend of Sally's, is a target for murder.

A colleague from military intelligence calls on Mac, and is murdered.

Mac heads south to a police convention on a train filled with officers, Mildred, and the author of Cops and Other Crooks, who is murdered en route.