Apt Pupil, a novel by Stephen King was adapted to the big screen in 1998 with director Bryan Singer at its helm. It sees a 16 year old high achieving high school student Todd Bowden (Brad Renfro) who suspects his neighbour Arthur Denker (Ian McKellen) is actually a Nazi war criminal in hiding from justice named Kurt Dussander. Bowden soon confronts Denker and blackmails him to reveal his stories of the holocaust or be turned into the police. The boy and old man develop a strange relationship; the more the boy hears the more it affects his personality, grades and behaviour and Dussander has his old Nazi habits stirred, with disturbing results.