Astrid Nielsen, works in the library of the judicial police. Suffering from Asperger's syndrome, however, she has an incredible memory, so she is very useful in analyzing the files for ongoing investigations. The district commander, having noticed this ability, decides to use it to the fullest, entrusting her with very complex investigations which have remained unsolved to date. In addition, also to reciprocate, he will try to help Astrid on the behavioral side, in order to provide mutual help.

在法保罗夫航空展上，一架最先进的幻影2000战机在飞行表演之时无故失踪。安东尼（伯努瓦·马吉梅 Benoît Magimel 饰）和塞巴斯蒂安上尉（科洛维斯·科尔尼拉 Clovis Cornillac 饰）奉命追踪飞机的下落，并最终找到了飞机，没想到幻影2000竟然向两人发起了攻击，无奈之中，为了自保，安东尼将其击落。