A mother on the run. It's been three years since Daphne Monroe's family were brutally murdered in a home invasion. Her once perfect life is in ruins: no husband, no children - and no respite from the police who suspect her of committing the crime herself. Only one thing keeps her alive: the transplanted heart beating in her chest. But when an intruder breaks into her home, Daphne realises the killer is back to finish what he started. A killer on the move. Years of unsolved murders across America have left law enforcement baffled. The victims lived different lives and died in different ways. There was nothing to connect them to a serial killer. Until Daphne discovers a chilling link... Nowhere to turn. The police blame Daphne for the death of her children: she can't ask the authorities for help. If she wants to clear her name, she must do it alone - and find the killer before he finds her. What she uncovers draws her into the hidden world of organ donation, medical obsession, and a beautiful girl's tragic death that made Daphne's own survival possible. Can Daphne uncover the truth before the killer hunts her down? And can the truth ever mend a broken heart? Gripping, intelligent and emotionally charged, Heartbreaker is a compelling new crime thriller for readers who love Harlan Coben, Sam Holland and M. J. Arlidge.