Chase and his staff go after a killer who specializes in ''accidental'' deaths related to insurance policies.

A killing has been committed and to prevent another the staff at 21 Beacon Street starts an investigation which almost leads them to outer space. 

A lass tells Chase that her fiance is mentally iII and is trying to kill her.

Investigator Chase matches wits with a narcotics ring after an undercover agent is murdered.

The story of gangsters who kidnap the wife of a bank cashier to make him aid them in a robbery.

Chase is hired to find out if a missing Chinese scientist is really dead when an unidentifiable corpse turns up.

A foreign dignatary, with revenge on his mind against his own brother, decides to kill his nephew and bride.

A wife is killed and her psychopathic killer leaves evidence at the scene that incriminates her husband. The dejected prisoner asks Chase to clear him out before the execution.

Investigator Dennis Chase and his staff plan a clever hoax to swindle a man out of money that was in turn swindled from a widow.

Chase and his team are hired by a newspaper editor in order to track down the payroll of a big crime syndicate.

The story has to do with an investigator turned boxer to get information on fight racketeers.

 A risky burglary is executed in order to save a man's reputation. Chase helps the man to retrieve some compromising letters hidden in a vault.

As the police force get wind that the "syndicate" is after a witness, they turn to investigator Chase in thoroughgoing terror. He figures out a scheme to pull the police out of a nasty pickle.