The final word in the story of what really happened to Robin Williams at the end of his life, focusing on his fight against a deadly neurodegenerative disorder known as Lewy body dementia.

A two-hour documentary special Robin Williams: Behind Closed Doors which gives viewers an intimate look at his life from his childhood in the suburbs of Chicago to small comedy clubs in Los Angeles, his breakthrough role on the TV show Happy Days as Mork from Ork and his big screen triumphs.