Frankie is in her forties, ambitious and successful. She works in the aerospace industry at Filton, designing surveillance drones for the military. Shes never married, and is completely in control of every part of her life. Her closest relationship is with her father, who worked as an engineer on Concorde. But her life changes forever when she embarks on a passionate affair with Kahil, a French/Algerian aerospace student, twenty years younger than her. One day, she arrives at work and is detained by the security services: Kahil is a person of interest to MI5. Her well-ordered life starts to unravel in a welter of suspicion and prejudice, as Frankie no longer knows whether to follow her passion or listen to the doubts that increasingly overwhelm her. 为: 弗兰基四十多岁,雄心勃勃,事业有成。她在菲尔顿的航空航天业工作,为军方设计无人侦察机。她从未结婚,完全掌控着生活的方方面面。她最亲密的关系是她的父亲,他曾在协和式飞机上担任工程师。但当她与比她年轻20岁的法国/阿尔及利亚航空航天学生卡希尔开始一段充满激情的恋情时,她的生活永远改变了。有一天,她上班时被安全部门拘留:Kahil是军情五处感兴趣的人。她井然有序的生活开始在怀疑和偏见的漩涡中瓦解,因为弗兰基不再知道是追随她的激情还是倾听越来越压倒她的怀疑。