In July 1992, Rachel Nickell was murdered on Wimbledon Common in front of her two-year-old son. What followed was one of the nation's most controversial murder investigations. Police used a honey trap to get a confession from one man, Colin Stagg. He suffered death threats, physical attacks, imprisonment, and became one of the most hated men in Britain. This drama documentary tells the shocking story of how police targeted an innocent man, and includes an exclusive interview with Stagg.