Mrs "Oasis", Patsy Kensit, plays detective Kelly Wheatstone. There she is, sitting at her desk replaying a tape on her cassette - the only clue she has to a bizarre series of rapes and murders and abstractedly she glances across at her partner frank Hampton... lights are on but no-one's home! Frank you see has other problems... big time! He thinks his wife is having an affair with her boss David de Salvo, which is occupying rather more of his mind than either the cassette on Kelly's desk or the serial rapist! When de Salvo is found dead, Frank is implicated and warrant for his arrest is issued, but Kelly is convinced he had nothing to do with it and sets about trying to prove his innocence.