Helm is hired by a charming socialite with a dual personality to investigate a murder that she may have been committed while acting as her other self.

Helm investigates the death of a tycoon who was going to be a player in the highest stakes poker game of all time.

Helm investigates the kidnapping of a prized stud horse and the murders of the three men who had been watching the horse.

After clearing a businessman of murder charges, Helm discovers some new evidence that points to the man's guilt.

While searching for a woman who was involved with a $250,000 robbery, Helm finds himself being trailed by her cohorts who are hoping he will lead them to the loot.

Record pirates murder a detective friend of Helm's who had been hired to investigate possible piracy by a suspicious musician.

With Helm out of the country, Kronski must work alone to uncover evidence to prove that her client did not murder her husband.