For more than two decades, Debbie Griggs' disappearance haunted her family and baffled investigators. The devoted mother-of-three, who was pregnant with her fourth child, vanished from her home in Kent in 1999. As suspicion increasingly focused on her husband, Andrew, detectives painstakingly assembled a case without a body. Years later, shocking revelations would finally expose the truth and uncover the lengths one man was prepared to go to in order to protect his secrets…

In 1980, a man who should have been under supervision walked out of a Scottish psychiatric hospital. Hours later, an alarm sounded inside another hospital building in Glasgow. What followed raised questions that went far beyond one crime scene…