Review: Toss this 'Key': David Arquette stars in silly erotic drama Some secret diaries are better left locked. Case in point: "The Key," an American adaptation of an erotic 1956 Japanese novel about a married California couple who independently begin keeping graphic journals of their sexual relationship. When a wife and mother (Bai Ling) discovers that her artist husband of 16 years (David Arquette) has been keeping a diary of their bedroom activities, she decides to do likewise, spurring the couple to increasingly kinky behavior. For reasons known only to writer-director Jefery Levy, making the Japanese book suitable for contemporary American consumption meant having a pair of actors trading voice-overs in a deliberately scratched experimental film composed of double-exposed, stroboscopic images. The arty visual effects, backed by a soundtrack of ambient noise, may recall the experimental work of early practitioners such Stan Brakhage and Kenneth Anger, but the ponderous, headache-inducing results do the story and the actors no favors. The original novel, by Nobel Prize laureate Junichiro Tanizaki, had taken the form of a successful 1983 film set in fascist Italy, but this ludicrous "Last Tango in L.A." loses much in the translation. The Key