Heartsick

the long version

When beautiful serial killer Gretchen Lowell captured her last victim - the very detective who was trying to hunt her down - she quickly established who was really in control of the investigation. So why, after 10 days of horrifying physical and mental torture, did she release Detective Archie Sheridan on the brink of death and hand herself in? No one else will ever know what happened between Gretchen and Archie, and even with his tormentor serving life Archie remains both obsessed and driven by