Catherine Ryan Howard is an internationally bestselling crime writer from Cork, Ireland. Her work has been shortlisted for the Mystery Writers of America Edgar Award for Best Novel, the Crime Writers Association (UK) John Creasey/New Blood and Ian Fleming Steel Dagger Awards, and the An Post Irish Crime Fiction Book of the Year multiple times. Her novels had been included in the New York Times Best Thrillers of the Year, the Washington Post’s Best Mysteries and Thrillers of the Year, and the New York Public Library’s Best Books for Adults. Obsession, the TV adaptation of Catherine’s fifth novel, the number one bestseller 56 Days, will debut exclusively on Amazon Prime Video. She lives in Dublin.