Serial killers only stop when they're stopped. Homicide can't catch the killer because they don't know who he, she or they are. The deaths seem unrelated-a woman drowned, a judge crushed, a teacher bashed and an equestrian strangled. Why these victims? They're normal like you and me. Why murder the good guys? A radio shock-jock with verbal diarrhea is struck dumb. A murderer confesses to the broadcaster and the cases are all over the media. Jo Best is back in Homicide with more boyfriends than stiffs. One lover turns nasty and Jo is shafted. A car crash and missing pet bring heartache. Enter IT whiz, Michael Chan. Jo and Michael head to church for a baptism of fire. Can you spot the killers before Jo? And will she accept that Parisian invitation?