In the 1997 film “As Good As It Gets,” Jack Nicholson portrays Melvin Udall, a middle-aged man with obsessive-compulsive disorder who avoids stepping on cracks, locks doors and flips light switches exactly five times, and washes his hands repeatedly, each time tossing out the new bar of soap he used. He brings wrapped plastic utensils to the diner where he eats breakfast at the same table every day.

Though the film is billed as a romantic comedy, Melvin’s disorder is nothing to laugh about. O.C.D. is often socially, emotionally and vocationally crippling.

It can even be fatal. On our next report, Scott introduces us to a teen who suffers from a very serious anxiety disorder called Obsessive Compulsive Disorder or OCD.  One in two hundred young people have it and symptoms include repetitive behavior that can interfere with your daily life. We’ll find out how Michael got help through a behavioral modification therapy called Exposure and Response Prevention.