Acapulco, 1974: Rina Walker is on assignment. Just another quick, clean kill. She wakes to discover her employer's severed head on her bedside table and a man with an AK-47 coming through the door of her hotel room. She needs all her skills to neutralise her attacker and escape. After a car chase, she is captured by a Mexican drug boss who exploits her radiant beauty and ruthless expertise to eliminate an inconvenient member of the government. Notting Hill, 1956: Fifteen-year-old Rina is scavenging and stealing to support her siblings and her alcoholic mother. When a local gangster attacks her younger sister, Rina wreaks violent revenge and murders him. Innocence betrayed, Rina faces the brutality of the postwar London underworld – a world that teaches her the skills she needs to kill ...