Wow, I really liked Vertigo, and although some things in the film were a little unclear, I definitely got the obsession theme. Scottie starts off as a normal guy, but he becomes obsessive over “Madeline,” or what he imagines her to be. Madeline’s husband makes it appear that she is fixated on Carlotta, and in the process of trying to help her Scottie becomes the one who is really obsessed. Scottie seemingly goes over the edge once he puts two and two together about Judy and Madeline. I don’t think it means he is crazy, but it does show that normal people can become over taken with their passions so much so that they lose a grip on what is really happening. There is a fine line between reality and an obsessed person’s made up world. His friend Midge tries to ground him and bring him back to reality but he is too far gone with his infatuation for “Madeline” to respond to her efforts.