The UK's number one true-crime author examines a different kind of murder victim: the unwitting romantic partners of monstrous killers. On learning the truth, these innocents outen experience a kind of guilt for not having recognised the killer in their home, as well as having to face the grim reality of betrayal. They have to live with that - and even the suspicion that ‘they must have known something’ - for the rest of their lives. With an unrivalled record in exposing serial and psychopathie killers, Christopher Berry-Dee gets insiders the women- and sometimes men - who fall for monsters.