When young attorney Becky Balwin hires Cora Felton to accompany her to New York City to meet a new client in his penthouse apartment, the Puzzle Lady jumps at the chance. Cora is just coming off a bad breakup, and finding out that Chief Harper testified at a parole hearing for a killer she helped put away has her feeling old. But when she and Becky arrive at the apartment, they find the man is dead. There's a puzzle on his chest, and a prowler is searching the bedroom. Cora pulls her gun and gets off a shot as the intruder ducks out the window. The NYPD now think Cora is the murderer. Getting her off should be a breeze for Becky, but when the fatal bullet is too badly damaged to identify, Cora is lucky to get out on bail.Meanwhile, a diabolical killer is leaving puzzle clues.
