My wife is scared of me ?

My wife likes to watch the Reelz channel it's supposed to be for celebrities now it's mostly about real murders. She likes watch stuff about Manson and other murders. She's watching the show called Copycat Killers where people go out and kill people from scenes from movies or shows they watched. She's watching one about these group of young boys who were obsessed with the movie Resivor Dogs. She's never seen it I have its kind of scary. But she loves action movies im surprised she hasn't watched it. There were these boys who took a classmate out and cut him and beat him to death because of a scene from the movie also the boy was pissed at the guy for stealing his girlfriend. She was wanting to see that movie now shes not sure she wants now she's seen a real live version of it. Shes afraid I'll do the same or one of our friends. It's our friends birthday today she's worried if she goes to her party I'll do the same as those boys did because it happened after a party they went to. She knows that we have a special relationship no matter what I would never hurt her or anyone. Now they're saying back in 2012 all 3 of these kids got out of prison they said at the end of Resivor Dogs everyone dies so she's kind of scared but those kids are over in England. How can I help her feel better ?