The Casino Murder Case

In this mystery, Philo Vance receives an anonymous letter alerting him to the possibility that violence will soon be done within a well-known family, and the letter also suggests that something of interest will take place that night at the casino. Vance attends, and witnesses the collapse of the son and heir to the family fortune, a heavy gambler, due to his having been poisoned—immediately after he drinks a glass of water from the casino manager's private decanter. At approximately the same time, across town, the son's wife, a former Broadway musical star, dies from poison.