Although the movie itself was a bit of a letdown, IMO, the ending to Halloween 4: The Return of Michael Myers really stands out. Loomis, in horror, screaming, "NO! NO-NO-NO..." over and over again when he realizes that little Jamie had been cursed by Michael (as the classic, ominous Halloween theme plays). Then the slow motion scenes that followed, as he pulls the gun on her and attempts to fire, only to have the police knock it away. Then they all look up the staircase, at a possessed Jamie, with clown mask on and bloody scissors in hand. Probably the single most disturbing ending in the series.