A racketeer's bookkeeper gets Diamond involved in a blackmail scheme against his boss, when he asks him to find a book and gives him only one hour to do so.

An acquaintance of Diamond's is murdered. At his grave at a potter's field, Diamond sees a wealthy old woman laying flowers at some of the unmarked graves. Diamond tries to find the connection between her and his down-on-his-luck friend.

A bookie decides to get rid of Lt. Kile, whose efforts to put a stop to the bookie's operation have begun to annoy him.

A financier hires Diamond to search for his partner who has gone missing in Mexico.

While briefly stopping in San Francisco, Diamond finds himself the target of a gunman.

Diamond finds himself in a deserted amusement park on the trail of a desperate fugitive murderer.

Diamond is hired to deliver a note to a bank teller and is somewhat surprised when the teller screams after she reads the note.

A marriage counselor whose life has been threatened hires Diamond to protect him.

Diamond receives a tip that a man who has been presumed dead for over a year is still alive.

Diamond finds himself in a lonely hearts club when he is hired to investigate the confusing circumstances surrounding a robbery and murder.

Diamond receives a mysterious telephone call which informs him that he will die at a specific time later that evening.

A night club singer hires Diamond to protect her and her band leader from a disgruntled pianist who once played in their band.

A friend of Sam's wants Diamond to prove that her uncle's death was murder.

Summoned to a theater by a phone call, Diamond watches a magician thrust seven swords into a box containing his assistant. Is this the dangerous situation he was called to deal with?

An actress hires Diamond after she learns that a valuable painting which she purchased is a fake.

Diamond follows a dog which is pursuing a bedraggled cat.

After returning to his apartment with a date, Diamond finds an infant abandoned on his couch.

A journalist hires Diamond to look into the death of a singer who fell to her death, which he suspects was a murder but that the police have ruled a suicide.

A landlady finds one of her tenants dead in his room and shortly afterwards is greeted by a gun-wielding stranger looking for the man.

A diplomat who does not want the police to be involved, asks Diamond to find his missing fiancee.

Shortly after a dancer takes out a large insurance policy on her legs, she gets injured by a hit and run driver and is forced to collect on the policy.

A woman is killed after hiring Diamond to protect ""a young lady from France"" who turns out to be a poodle.

A woman hires Diamond when her father is attacked after he finds heroin hidden in his antique store warehouse.

A man is concerned about his daughter, whom he feels has been spending too much time brooding over her husband's death.

A French woman gets threats from a supposedly dead war criminal who knows the whereabouts of a fortune in smuggled diamonds.