The following ending explained contains full spoilers for The Outsider finale. And friend, it was a doozy. Okay, so The Outsider’s season finale brought the story of El Cuco the shapeshifting childslayer to a close. Also remember back when Holly had that wild ass dream where she got killed. "The Outsider" finale on HBO seemed to show Ralph and Holly defeat El Cuco for good...but a detail fans have noticed in the mid-credits might suggest the battle isn't over yet. THE OUTSIDER is a spooky murder mystery series which was based on … The Outsider finale explained: What happened at the end of The Outsider? Not sure why they didn't bring up the other boy who was killed in episode 9 in Cherokee whatever. This show had a real true detective vibe in the first few episodes and I think a … The new child victim sets grounds for the district attorney to clear Terry Maitland's name in the murder of Frankie Peterson. This is my prediction for this scene. HBO's The Outsider has come to an end, drawing the story to a conclusion that saw tormented cop Jack Hoskins (Marc Menchaca) kill off a number of the core characters before taking his own life. Holly's weird behavior posts credits can be explained by the entire experience changing her and changing her world view. Feel free to counterpoint, chime in, and post the theories and questions you have too! Going into the season finale I wanted to post some of the theories and questions I have. I see a lot of people saying The Outsider started off strong and then they lost interest. Here's all the evidence for and against him, and why The Outsider's killer might be someone---or thing---else. The Outsider was supposed to be a limited series, but the show's finale left open the possibility for more with a surprise mid-credits scene. Did Terry Maitland really do it? Could that have been real. Probably not.