Private investigator Pat Novak is hired by a mysterious client named Joe Adams to watch an apartment while Adams catches a plane. When police detective Hellman arrives at the apartment searching for evidence related to a year-old unsolved murder of wealthy businessman Thomas Van Dyke, Novak discovers that Adams is actually a woman named Dodo Sandberg. Novak becomes entangled in a dangerous mystery involving a rare book called Death in Herald Square that seems connected to the Van Dyke murder and worth killing for.

With Pat Novak, Joe Adams (Dodo Sandberg), Hellman, Pete Crowley, Dodo Sandberg, Jocko Matigan, Thomas Van Dyke.

Listen for: The cynical, world-weary narration of Pat Novak as he navigates a complex murder mystery; the tense exchanges between Novak and Detective Hellman; the mysterious warnings from multiple parties about a book that appears central to solving a year-old murder.

First aired on November 30, 1947 on ABC.

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