Mary, Mary

When a Hollywood actress is gunned down outside her Beverly Hills home and the killer sends a chilling email to the Los Angeles Times claiming credit, FBI detective Alex Cross is pulled from a rare family vacation into one of the most unsettling cases of his career. The killer, who signs her messages "Mary Smith," is methodical, taunting, and frighteningly deliberate — and she's not finished. As fear ripples through the upper echelons of Hollywood and the body count rises, Cross faces a puzzle unlike any he's encountered: a perpetrator whose motive defies easy categorization and whose next move no one can anticipate.

Patterson keeps the tension coiled tight throughout, deploying his signature short-chapter structure to maximum effect — each section ends just a beat before you're ready to stop reading. What distinguishes this entry in the Alex Cross series is the dual perspective that splits time between investigator and killer, giving readers uncomfortable access to a deeply disturbed mind. That proximity is what makes Mary, Mary linger after the last page: less a conventional chase story, more a psychological portrait of obsession with a detective trying to outthink someone who doesn't follow any recognizable rules.