LET THE WRONG ONE IN Movie Clip - Plot synopsis: Let the Wrong One In follows young supermarket worker Matt, who is a little too nice for his own good. When he discovers that his older, estranged brother Deco has turned into a vampire, he’s faced with a dilemma: Will he risk his own life to help his sibling, with blood being thicker than water? Or will he stake him before he spreads the infection further?