The Casino Murder Case (film)

The Casino Murder Case is a 1935 mystery film starring Paul Lukas and Alison Skipworth. It was directed by Edwin L. Marin from a screenplay by Florence Ryerson and Edgar Allan Woolf, based on the 1934 novel of the same name by S. S. Van Dine. It was the ninth film in the Philo Vance film series.

Vance takes Doris to his home, where he and District Attorney Markham Purnell Pratt show her the mysterious letter. Doris immediately recognizes the return address as being that of the Llewellyns townhouse in Closter and notices that the letter was typed on her typewriter. Vance assigns Sergeant Heath Ted Healy to help stake out the casino that night, but their presence does not prevent Lynn from suddenly collapsing at the card table. At the same time, Doris informs Vance that Virginia has died at the Llewellyn house. Markham begins his investigation of the murder by questioning Mrs. Llewellyn, who recalls having quarrelled with Virginia before she was poisoned, and Amelia Isabel Jewell, Mrs. Llewellyns daughter, who admits that she too had a spat with Virginia. Meanwhile, Doris finds Mrs. Llewellyns recently altered will, in which she disinherited Kinkaid, making it apparent that Lynn and Amelia would be the only ones who would benefit from Mrs. Llewellyns death.Other clues begin to surface, including Kinkaids unusual collection of books on chemistry and poisons, and a loaded gun found in Virginias bedroom. Soon after Lynns recovery, Mrs. Llewellyn is found dead of an apparent suicide with a note, bearing her signature, in which she confesses to Virginias murder. Not convinced that the mystery has been solved, Vance pursues his theory that Mrs. Llewellyn may have been poisoned by heavy water, which leads him to Kinkaids secret laboratory, where he and Doris are captured and held at gunpoint by Kinkaid. Vance and Doris escape, but Vance does not believe that Kinkaid is the murderer, thinking instead that he is merely one of many decoys set up by the real killer to lead the investigation astray. ........

Source: Wikipedia