When the owners of a struggling detective agency are found asphyxiated in their car, Detective Chief Inspector Lloyd rejects the majority opinion that they committed suicide. His theory that they were murdered becomes even more likely when the doomed couple's only client, wealthy Mrs Angela Esterbrook, is found shot dead. Why would someone with her sort of money employ an untried agency to carry out an investigation? The super rich Esterbrook family is a puzzle that Lloyd and his partner, Judy Hill, must solve before it's too late. But no one, not even the cunning killer, anticipates how the plot will take on a lethal life of its own - beyond everyone's control.