The inmate that has run away from the hospital now lives at Rainbow Village while being disguised as a mystery novel writer, Ma Ji Won. One day, she tells one of her neighbours that her husband has a mistress. Three of the ladies gather together to look for the woman who is having an affair.
마을 사람들에게 협박편지가 배달되고, 자살 사건이 벌어지자 사람들은 공포에 휩싸인다.
미스 마는 자살이 아니라 살인사건이라 주장하고..
한편 마지원의 실체가 살해범이라 확신한 한태규는 마지원을 찾아가 압박하는데..!