One rainy night in New York, psychologist James Cobb gives a talk on the art of recovering lost memories. Afterwards, he's approached by a stranger: a dying man who, forty years ago, woke up in a hotel room with a murdered woman, and no memory at all of what happened. Now, he needs to know whether he was an innocent bystander - or a killer. Intrigued, James begins to unpick the tangled threads of this decades-old mystery. But everyone involved has a different story to tell, and every fact he uncovers has another interpretation. As his interest becomes an obsession, and secrets from his own past start to surface, he begins to suspect that someone has buried the truth deep enough to hide it forever. Bad Blood tells a gripping story of memory, motives, and how little we really know about ourselves.

When big-shot literary agent Peter Katz receives an unfinished manuscript entitled The Book of Mirrors, he is intrigued. The author, Richard Flynn is writing a memoir about his time at Princeton in the late 80s, documenting his relationship with the famous Professor Joseph Wieder. One night in 1987, Wieder was brutally murdered in his home and the case was never solved. Peter Katz is hell-bent on getting to the bottom of what happened that night twenty-five years ago and is convinced the full manuscript will reveal who committed the violent crime. But other peoples recollections are dangerous weapons to play with, and this might be one memory that is best kept buried.