Evil Impulse (The DI Geraldine Steel series)

Detective Inspector Geraldine Steel has finally managed to build a stable, happy life alongside her partner and colleague, Ian Peterson. However, her peace is shattered when a brutal serial killer begins targeting random women across the streets of York. Before Geraldine can fully track down the psychopath, she is suddenly abducted by a ruthless drug cartel, forcing her into a highly volatile fight for survival while a murderer continues to roam free.