Captain Julia Scola, who testified against her coworkers, encounters resistance from her colleagues when she looks into a woman's disappearance; Julia's ability to concentrate is put to the test when her high school sweetheart is appointed as the next commissioner.Police captain Julia Scola and criminal defense attorney Novak Lisica have a long and tangled relationship that includes being childhood rivals, first loves, and bitter foes before coming to an estrangement of 20 years. When Novak leaves his company to join the police, he becomes the new commissioner of Julia's squad, and the two are forced to face their former romance as they take on Paris's most difficult crimes.