Mr.Big is the name of an undercover sting created and perfected by the Royal Canadian Mounted Police. It is considered entrapment in many other countries, including the United States and England. But the Canadian court system allows confessions made to cops posing as criminals to be admitted as evidence—even while it declares bans on court proceedings. Now, after multiple cases of false confessions and wrongful convictions finally coming to the public’s attention, the debate about Mr.Big is starting to heat up. With shocking undercover police video and heart-wrenching interviews, “Mr.Big” reveals the experience of several sting victims who spent years in jail for murders they didn’t commit. The documentary examines the risk of false confessions obtained through this specialized scenario and explores why it is permitted by the Canadian justice system.