Auto Focus

Auto Focus is a 2002 American biographical film directed by Paul Schrader, starring Greg Kinnear and Willem Dafoe. The screenplay by Michael Gerbosi is based on Robert Graysmiths book The Murder of Bob Crane 1993.

Discjockeyturnedactor Bob Crane develops a secret personal life, focusing on his relationship with John Henry Carpenter, an electronics expert involved with the nascent home video market.Encouraged by Carpenter and enabled by his expertise, Crane a churchgoing, cleancut family man becomes a sex addict obsessed with women and with recording his encounters using video and photographic equipment, usually with Carpenter participating. ........

Source: Wikipedia