Smash Cut - Sandra Brown

When millionaire Paul Wheeler is murdered, his family retains renowned lawyer Derek Mitchell to defend the victim's nephew Creighton - although the police have not charged the young man with the crime. Wheeler's mistress, Julie Rutledge, who is also a suspect, believes that Creighton is the killer, despite his rock-solid alibi, and she'll do almost anything in her quest to prove his guilt - even ruin Derek's career.