Perfect Stranger (2007)
A journalist goes undercover to ferret out businessman Harrison Hill as her best friend's killer. Posing as one of his temps, she enters into a game of online cat-and-mouse. sense of guilt, staging, sex scandal, seduction, expiation, murder, psychotic, taunting, angry, cautionary, dramatic, suspenseful, incredulous, egotistical, tense, assertive, cruel, enraged, foreboding