Louis Theroux Under the Knife. Word Search Puzzle Solver. Louis Theroux Under the Knife word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. Louis Theroux: Under the Knife is a TV documentary written and presented by Louis Theroux about the people and doctors involved in plastic surgery operations. Filmed mostly in the USA in the programme Louis himself ends up getting liposuction. This includes identifying and searching for words that are related to : Documentary, Louis Theroux, Stuart Linder .