Spain reopens the infamous Lizzie Borden murder case to find out who really took an ax to her father and stepmother. He gains exclusive access to Lizzie's home, belongings and previously sealed family documents. Spain starts his investigation from scratch, as though the crime happened yesterday. Then, using psychographic profiling and statistical theory, among other tools, he re-examines the original suspects. Spain reenacts what they supposedly were doing at the time of the murders, their ‘alibis' and whether these accounts are actually plausible. Through his relentless digging, Spain unearths a surprising new suspect never before connected to the case!