Ruth Morton, a world-renowned film actress, finds herself the target of a mysterious stalker. The stalker sends her a series of cryptic threats, and soon, Ruth's life is in danger. She calls for the help of Richard and Grace Duvall, a husband and wife detective team. The Duvalls soon find themselves ensnared in a deadly game of cat and mouse. As they investigate the case, they soon realize that everyone is a suspect. The stalker could be anyone, and the Duvalls must race against time to find the killer before it's too late.