Nicholas Lea plays Les Forsythe, a character based on Les Holmes, the ex-RCMP officer who wrote a book revealing the tragic errors that let Clifford Olson kill several more victims before being arrested. The book is titled "Where Shadows Linger: The Untold Story of the RCMP's Olson Murders Investigation" and was co-written by Holmes and Bruce L. Northorp.
The Investigation, a TV movie, was made in 2002, focusing on allegations that Royal Canadian Mounted Police (RCMP) bureaucracy delayed the arrest of notorious serial killer and rapist of children Clifford Olson.