Barbara Penfield was a normal suburban housewife with a normal suburban family and a normal suburban home. She even took normal suburban antidepressants. When she died in a car accident, even the tragedy seemed normal until the evidence made it clear that someone had tampered with her car and then lured her to drive while her medication made her drowsy.
To find Barbara's murderer, Detective John Mason will have to suspect everyone who knew her. But when none of the suspects pans out, he'll have to look for ideas wherever he can find them, even if the source is unthinkable.