My Lovely Wife by Samantha Downing

The novel is a gripping psychological thriller that follows a seemingly ordinary suburban couple who harbor a dark and twisted secret: they engage in murder to keep their marriage exciting. As they meticulously plan and execute their crimes, the couple's facade of normalcy begins to crack, revealing the chilling depths of their depravity. The story delves into themes of deception, obsession, and the lengths people will go to maintain appearances, all while building tension and suspense that lead to an unexpected and shocking conclusion.