Diamond moves to Los Angles where he begins to date Karen after she hires him to find her boyfriend's murderer. A woman hires him to find her playboy son who has gone missing.

A mobster wanted by the law fears that he is going to be assassinated and asks Diamond to negotiate his surrender to the police.

A couple from South America hire Diamond to find a political refugee from their country who is hiding in the U.S.

An attractive young woman pleads with Diamond to investigate the murder of a fiananceer. Diamond later learns that her father is the police detective assigned to solve the case.

Diamond heads to Mexico in search of a missing art dealer.

Diamond winds up in the middle of a deadly conspiracy when he agrees to help a wealthy young man find his missing bride.

An antique dealer hires Diamond to find an Oriental cigarette box and his employee who disappeared while delivering the box.

A masked gunman steals the box office receipts of a charity jazz festival which Diamond is attending.

After inheriting half of a citrus packing plant, a pair of brothers hire Diamond to investigate a young woman they suspect is a golddigger, who has been romancing their late father's partner.

An art dealer asks Diamond to make a clandestine investigation into the disappearance of a valuable crown which vanished from a safe on board a yacht.

A jukebox operator asks Diamond for help when he is threatened by racketeers who want him to use their records exclusively.

Diamond learns that a friend of his, a TV personality, is undergoing marital problems and that his wife may be out to kill him.

A terrified woman calls Diamond for help after her life is threatened, but by the time Diamond arrives to meet with her she has disappeared.

A nun asks Diamond to locate a missing young boy who is a member of a Dixieland band she has organized.

Diamond goes undercover as a casino worker in order to find a priceless jewel that has been stolen.

Diamond discovers some unpleasant facts about a young woman who was murdered after he talks to her roommate, a dance hall hostess.

An old flame of Diamond's comes to him hoping to hire him to find out who is attempting to blackmail her.