Heartsick by Chelsea Cain is a gripping thriller that follows detective Archie Sheridan as he hunts down a sadistic serial killer named Gretchen Lowell. The novel delves into the twisted relationship between Archie and Gretchen, who once captured and tortured him before he managed to escape. As Archie becomes obsessed with catching Gretchen, he must confront his own demons and inner turmoil.
