In yet another of many recent attempts to reevaluate a major crime story (as "Serial" and "The Jinx" do with different cases), director Erin Lee Carr takes on the case of Gilberto Valle, better known as the "Cannibal Cop."

The film, which premiered at the Tribeca Film Festival and debuts on HBO on Monday, follows Valle, a former NYPD police officer who allegedly cooked up a scheme in an online chat room to kidnap, rape, and eat dozens of women.

Valle was convicted in 2013 for charges on kidnapping conspiracy, but, after he had served one year of jail time, his case was eventually overturned. Some believe he really wanted to do all of this. He says it was a sick fantasy that he never planned to actually carry out.

Viewers can spend all the time they want deciding whether he belongs behind bars. But this is not a film that is searching for a guilty or innocent verdict. Valle's story is used to present a bigger, more pressing problem about internet culture in general.