In the 1980s, Henry Lee Lucas confessed to hundreds of murders, which allowed grieving families to get closure for the unsolved cases. There was no direct evidence linking Lucas to the crime scenes, but he convinced authorities of his involvement by being able to sketch victims' portraits and cite brutal details of each attack. But the legitimacy of his confessions were eventually questioned. Attorneys and journalists found impossibilities in Lucas' timeline, while DNA testing began to contradict his claims, which received media attention worldwide. This docuseries explores how Lucas -- once called America's most prolific serial killer -- was actually a complex figure entangled in a flawed justice system.