简介：　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.