A prizefighter bets against himself in an upcoming fight. Maris becomes suspicious of his actions.

A psychologist, Dr. Von Heisinger, is murdered. The weapon: an arrow. Maris investigates.

An ex-convict who has become emotionally unstable kidnaps Maris and his assistant because he blames Maris for his conviction.

A man is convicted of murdering his former employer. His wife, Betty Nelson, comes to Maris and pleads that he investigate the case and have it re-opened.

An ex-convict runs a gift shop and finds the dead body of a well known gangster in his shop. He is arrested for murder. Maris and Lt. Weston, who are friends of the accused, help in the investigation.

Frank is an ex-convict who is going straight and is now the son-in-law of a policeman. Two of Frank's old friends commit a robbery and Frank is jailed. Maris tries to help but a few surprises come his way.

A blackmailer is killed after warning a city official that he'll release scandalous information about his wife if he doesn't resign his position. The police arrest the city official for the killing. Maris investigates the murder.

A teenager is charged with murder and Maris' secretary urges him to take the case.

A Greek immigrant, Alexis George, receives a shipment of rare coins to sell from his mother in Greece but is burglarized in the process. A friend of Alexis is supected of murder and the robbery. Maris investigates.

A skeleton buried under a road is found by contruction workers. Maris investigates the possible crime.

A wealthy businessman, unhappy with a contract he's signed, tries to void the contract through devious and unscrupulous means. His actions place an innocent man in trouble with the law for assault and battery. The problem for Maris is that it's his client breaking the law.

A husband is charged with the murder of his wife. Maris tries to discover what happened.

Maris and Lt. Weston go fishing on vacation. At the lodge they stay the owner is accused of murdering his adulterous wife. Rather than fish, Maris and Weston investigate.

Maris receives an important clue from a young girl in an employment agency racket. Maris decides to investigate.

A rich oil man is the victim of the theft of his securities. His former employee is accused of the crime. Maris invesigates.

A murder and a robbery takes place. Maris finds an envelope full of money tied to the case. Maris investigates.

An intruder is shot by a woman, an ex-showgirl. It so happens that the intruder was her husband. Maris investigates.

A rehabilitated ex-convict is suspected of killing a policeman and is jailed. Maris comes to his defence.

A femme fatale lies in her testimony. In the process her husband is jailed for a murder he did not commit and her murderous boyfriend goes free. Maris comes in to try correct the injustice.

A supervisor at a zoo is poisoned and the zoologist is charged with murder.

Joe Tanner is an ex-convict but is now reformed and leading a good life. The police, however, charge him with a crime. Tanner claims he is innocent. Maris investigates.

A newspaper columnist is murdered and Al Bingham, another newsman, is charged with murdering him. Maris investigates.

Ed Reed's house burns down and a female friend is killed. Reed is accused of arson and murder and is jailed. Maris believes in Reed and investigates.

An ex-convict and his son get implicated in a theft and get arrested. Maris believes in the two men and gets to work on finding the truth about what happened.

A millionaire playboy is murdered and a girl is charged with the murder and sentenced to the electric chair. Maris belives the girl is innocent and investigates.