Crime by Night

Larry Borden's career as a concert pianist ended when a dispute with wealthy father-in-law Harvey Carr ended up with his hand chopped by an ax. Carr is found dead from a blow by an ax, and Larry is sure to be the prime suspect. He hires New York detective Sam Campbell and his secretary-partner Robbie Vance. Harvey's daughter and Larry's ex-wife, Irene, also turn up, along with another dead body, the estate's handyman.

Irene is now engaged to Paul Goff, a singer, who has an agent, Ann Marlow. A theory develops that Carr's death involved a wartime spy ring and a chemical plant he owned, and Goff is implicated. Goff is the next murder victim, though. Sam and Robbie eventually deduce that Ann is the actual spy. They solve the case and save Larry, freeing them to return to New York.

Fast-paced mystery that is fairly entertaining and features an interesting protagonist in Jerome Cowan, a quick-talking and sleazy detective. Jane Wyman plays his assistant. The mystery can be complicated, and you have to really pay attention to the conversations.