Journalist Terry Nichols is hired by his boss, Sampler, to research a mysterious letter received by the
Morning Chronicle from a Cora Williams, who writes that she discovered a $200,000 fortune and considers it proof of Eric Goran's murder, which was ruled a suicide fifteen years prior. Cora's relative, Walter Elliott, once a suspect in Eric's murder, is now running for the United States senate against Sampler's brother-in-law. Terry is hesitant to take the job due to the fact that he is dating Walter's daughter, Gay, but agrees. Upon interviewing him, Walter insists to Terry that he had nothing to do with Eric's death, and afterward contacts his lawyer, Tom McGalvey, who suggests hiring detective Ken Grady, who investigated Eric's death before. Terry and his photographer, Pidge, stowaway on a boat to a remote island to visit Cora's mansion where the Elliots, Tom, and Tom's assistant Connie, have convened. In the mansion, Terry and Pidge find Cora unconscious, alone with her
black cat in the room. Gay attempts to reach a doctor but finds the boat they traveled on has caught fire, leaving them all stranded. Connie and Ken overhear a semi-conscious Cora mention money stored in a "little house." Connie, who suffers from
ailurophobia, faints when she sees Cora's cat, and moments later, Cora dies. Ken questions everyone in the house, but the meeting is interrupted by the arrival of Kyra, Eric Goran's daughter, who claims she has arrived to confront Cora about her father's death. Gay discovers Ken's business card with Cora's last words written on them. While attempting to compare the card's handwriting to Connie's, she is bludgeoned from behind. Shortly after, Connie, fearful she is a suspect in Cora's death, begins to make a confession before fleeing. She is discovered dead by Terry moments later. When Gay regains consciousness, she finds the card has disappeared, only for Ken to admit that he took it. Terry covertly plants a thousand dollar bill near Cora's cat, staging the scene as though the cat has discovered the money. Kyra falls for the plot, and suggests the feline may be possessed by Cora and able help them locate the fortune. The group separate, each in search of the "little house" mentioned by Cora. Gay enters the basement in search of a
dollhouse she owned as a child. As Ken descends the stairs to the basement behind her, an unknown assailant trips him, causing him to be impaled to death on a rake. The group suspect Walter of the crime. After they all leave the basement, the cat remains hovering above the dollhouse. Terry subsequently finds Tom searching through the dollhouse for the money, and a fight breaks out between them. Tom eventually relents and confesses to having fronted a
bootlegging operation with Eric years prior, which was run out of Cora's mansion. Seeking to abscond with the profits earned by the illegal business, Tom murdered Eric and staged his death as a suicide, but was unable to locate the cache of money, which Eric had hidden on the island. Ken and Connie, who had discovered Tom's murderous plot, subsequently
blackmailed him. Terry proceeds to admit that Kyra is in fact not Eric's daughter, but an actress whom he hired to pressure the murderer in the hopes of revealing their identity. Shortly after, Pidge discovers the fortune hidden inside a
birdhouse outside Cora's bedroom window. ==Cast==