Review of Un coupable trop parfait

You find here a scheme already seen before: the wrongly, falsely accused serial killer, actually serial killers. One of the two is guilty of many crimes, but not one in particular. The other is innocent for the whole. Moulin investigates on the crime the first serial killer denies to have commited.This is a suspenseful, tense story that glues you to the screen. An unpredictable tale. And I usualy avoid serial killers stories, not my stuff. But something remaons unexplained: Moulin arrests the profiler because the latest said something which was not told in the file. So, he suspects him and arrests him. Later he has proof that the profiler is innocent and releases him. OK. But what about the classified information that the profiler knew? Common, flat ending.