This short comment first, this film may not have a unique plot, the following is just another plot I think:
1. The protagonist injects insulin into his wife, causing her to die. Sammy is a fraudulent insurance customer contacted by the protagonist. Sammy does not have a wife.
2. Teddy was an undercover drug cop who helped the protagonist find another prisoner who raped his wife, John G, and killed him; he also used the protagonist to kill the drug lord Jimmy (Jimmy Natalie, including Dodd, was a drug gang) , Teddy and the protagonist are undercover in this gang, the former uses the protagonist to get rid of this organization, and in turn Natalie also wants to use the protagonist to get rid of Teddy and Dodd, which are mentioned in the film.
3. At the end, the protagonist does not want to know that he has accomplished his purpose and becomes empty, so he continues to deceive himself and set Teddy as the next "John G".
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