Harry's investigation into a doctor's questionable activities has fatal repercussions for a friend of the detective; guest Ruth Roman.
After a wealthy man expires while hearing a threatening tape, Harry's investigation leads him to the dead man's nephew.
Harry poses as an ex-convict in search of work to infiltrate a stolen-car ring after a botched theft lands Ruby's teen nephew in jail.
A rape victim comes to Harry for help after police drop her case even though she is able to identify her assailant and his accomplice.
The murder of a friend, a fellow private detective, propels Harry into a case involving a beautiful Chinese woman and a bankrupt company.
Harry searches for the missing girlfriend of a robber (John Rubinstein) holding hostages in a liquor store; guest Priscilla Pointer.
A battered suitcase threatens to ruin the life of a woman (Susan Strasberg) when a man from her shady past returns to claim the satchel.
The assistant of a slain club owner brings an envelope to Harry containing a tape which tells of a book that could threaten many people.
A coed's (Glynnis O'Connor) arrest for passing counterfeit money points to her grandfather, also sought by desperate drug traffickers.
Harry finds himself in the middle of a deadly family feud when he tries to prove foul play in the death of a drunken ex-police officer.
Harry must find the pregnant, drug-addict daughter of a police officer accused of a murder in which the missing girl is the only witness.
The murder of his old police partner leads Harry into a complex web of death and blackmail that also involves the former Mrs. Orwell.
Harry poses as an alcoholic patient in a therapy session to learn which of the group murdered a fellow member; guest Joanna Pettet.
Trench seeks the elusive woman who is Harry's alibi in the murder of a businessman, a crime for which Orwell has been carefully framed.
Spence is arrested in the murder of a doctor who worked at the nursing home where Spence's father (Jester Hairston) met a suspicious end.
The widow of a pilot killed in a crash in which a senator was the only survivor comes to Harry claiming the mishap was really sabotage.
A bank hires Harry to find a missing heiress, a trail that leads him to a shady psychologist (Sam Jaffe) and his quasi-religious cult.
The parents of a mentally impaired teenager (Adam Arkin) hire Harry to establish their son's innocence in the brutal strangulation of a woman.
A wealthy woman (Anjanette Comer) hires Harry to clear her housekeeper in the murder of a small-time hoodlum; guest Louis Gossett Jr.
Sue gives Harry a bottle of cologne, which he passes along to Lester Hodges, only to learn the bottle is the target of diamond smugglers.
A lawyer wakes in her car after a drunken night to find she has a smashed headlight, then reads of a hit-and-run death in the newspaper.
Trench turns to Harry for help after being framed in the murder of a woman narcotics informant; guests James McEachin, Rene Auberjonois.
A frightened woman hires Harry to find her daughter (Maureen McCormick), a pregnant drug addict who blames herself for her lover's death.
Just before dying, Quinlan manages to mail evidence to Harry that sets the detective on the trail of an underworld kingpin (Sal Mineo).
Harry is fired after his investigation to clear a man in a coed's disappearance instead turns up evidence showing the woman was murdered.
A murder suspect (Kurt Russell) under sentence of death from the victim's father hires Harry to clear his name; guest Audrey Totter.
Harry tries to help a deaf custodian (James Wainwright) accused of arson in the destruction of an old building; guest Gail Strickland.
Harry saves an ex-jazz star (Julius Harris) from drowning, then learns the man had several reasons for diving in; guests Brenda Sykes.
A former mental patient (John Rubinstein) claims to have shot and killed his brother, only to have Harry learn the victim is still alive.
A secretary who engineered a robbery with her beau asks help from Harry, who learns the amount of the theft has increased by $475,000.
Harry is stranded in a desert mansion with an eccentric old woman (Jeanette Nolan) and her family who are being murdered one by one.
A woman (Linda Marsh) from Harry's past asks him to investigate the suspicious unexplained absences of her current husband (Robert Reed).
Harry is asked to protect an eyewitness (Barbara Anderson) to a mob killing, but finds the woman's pursuers are one step ahead of him.
A blind mystery writer (Stefanie Powers) reports the death of her psychiatrist -- a murder she claimed to have seen earlier in a vision.
A 16-year-old seductress seems to be at the center of the mystery over her mother's death, and a publisher's (Paul Burke) disappearance.
Harry poses as a patient in a private mental institution to investigate the case of a woman who says she is being held against her will.
A nurse (Rosalind Cash) who treated Harry after he was shot comes to him for help when her son (Ty Henderson) is arrested for murder.
To save a girl who desperately needs a kidney transplant, Harry searches again for a missing man who eluded him during his police days.
A Shakesperean quote is Harry's only clue to a possible murder confessed to a priest (Laurence Luckinbill) who refuses to reveal more.
After his dog is killed, an arrogant architect (Barry Sullivan) fears for his life and calls on Harry to investigate; guest Linda Evans.
Harry investigates the disappearance of a retired rear admiral's (Leif Erickson) wife (Sharon Acker), who vanished after a yacht mishap.
A Navy man's sister (Julie Sommars) receives one of his shoes in the mail, then gets a visit from Shore Patrol officers who want to see her brother.