The Origin Of Evil by Ellery Queen

A Problem in Deduction

Set in the sun-drenched hills of Los Angeles, this gripping mystery follows private detective Ellery Queen as he is drawn into a sinister web of deceit and danger. When a series of bizarre and threatening packages are sent to a wealthy businessman, Queen is called upon to unravel the cryptic clues and uncover the dark secrets hidden within a seemingly idyllic family. As he delves deeper into the case, he encounters a cast of eccentric characters, each with their own motives and secrets, leading to a shocking revelation that challenges his perception of good and evil.