With the progress and development of science and technology, a new type of drug that can make criminals "mend their ways" has been developed. A death row prisoner named Li (Ray Liotta Ray Liotta) was injected with the drug as an experimental subject. Through the monitoring of experimental data, scientists found that in addition to the gradual elimination of the tendency to violence, Li also felt guilty about the victim Gary (Mark Pickard), which means Li has gradually become a so-called "good man". The experimental group let Li return to society and carried out continuous monitoring. With the passage of time, Li's life is gradually on the right track. He not only works hard, but also has a beautiful girlfriend. The guilt in his heart makes Li want to see Gary. However, Gary's brother Bill (Tim Dickie Tim DeKay) is unwilling to forgive Li. He not only kidnapped Li, but also killed the staff who monitored him. The death of the staff made the police mistakenly think that Li's "nature is hard to change". On the one hand, the pursuit is pressing step by step, and on the other is the ferocious kidnapper. What kind of dangerous situation will Li encounter when he is attacked?