A friend from the Korean War years resurfaced with a grievance to air.

Mannix found himself deeply embroiled—his private investigator’s license practically submerged—when an unexpected ally presented itself.

A fighter is now hiding from the law following the death of a man who arranged his matches.

A sense of loss lingers around Mannix, yet it’s unclear who truly mourns him.

Mannix has been poisoned, and the method remains known to the perpetrator alone.

Through their collective legal action, death row prisoners compelled a formal inquiry into their cases.

The bathroom plunger vanished following a night out in Las Vegas.

A prominent African leader is receiving medical care at a hospital under an assumed name, while Peggy recovers there from injuries sustained during her work.

The scent of burnt coffee hung heavy as Mannix wandered into the diner beside the interstate, unknowingly stepping directly into the orbit of something dangerous. He'd sought only a lukewarm meal and a moment’s respite from the road, but fo…

During a standard inquiry into a helicopter accident, an unexpected connection emerged: a known associate of the Nazi Party surfaced within the details.

A young girl holds the crucial link to a brutal crime.

A prophet has spoken of Mannix’s downfall, and her words carry a disturbing weight of truth.

Following her husband’s death by suicide in Hong Kong, Ellen Gray discovers she is being followed—by a Vietnamese man whose motives remain utterly obscure to both her and Mannix.

The woman’s late husband possessed an elusive quality, shrouded in secrets.

Mannix holds only a hazy recollection of a young woman’s passing; it’s little more than that.

A police officer, facing scrutiny, has vanished.

An officer facing threats requires safeguarding.

Intimidation concealed the truth about a killing.

Ross and Alex, both players on Coach Mannix’s college football squad, orchestrated a peculiar gathering within the confines of a deserted town. This unconventional reunion culminated in violence, unearthing long-buried deceptions and simmer…

The star of the college basketball team disappeared in an unsettling way, prompting a bewildered search.

Following a car crash, an Olympic diver began receiving threatening messages.

A young woman of considerable fortune harbored a growing suspicion of something sinister at work.

A hurried letter from a woman calling herself Lynn Sargent prompted Joe Mannix to fly to Arizona. She was waiting for him at the airport, presenting him with a check for $1,000 and a small, tightly sealed package. Her instructions were simp…

There are suggestions that the records kept by the serial killer might contain fabricated entries.