“Gary Johnson is the most sought-after professional killer in Houston. In the past decade, he's been hired to kill more than sixty people. But if you pay him to rub out a cheating spouse or an abusive boss, you'd better watch your own back: He works for the cops,” Hollandsworth writes.

The movie also features a romance subplot, as Gary, who’s taken on a character he named Ron, gets hired to kill a woman named Madison’s husband. Ron convinces Madison to walk away, and she does, but they end up falling for each other and keeping their romance a secret in the process. Although this may seem like an epic love story, it’s not exactly what happened in real life. Johnson got a call about a woman wanting to kill her boyfriend for abusing her, and as he started looking into her case, he learned that she was too terrified to leave him because of what he might do. Instead of organizing a sting to bring down the woman, he made the decision to support her. To ensure she had the support she needed to leave her partner and check herself into a women's shelter, he put her in touch with social services and a therapist.