The premise of "Good Behavior" revolves around Letty Raines, a con artist and thief who struggles with addiction and a troubled past. After being released from prison, Letty is determined to turn her life around and reconnect with her young son. However, her efforts to stay on the right path are complicated when she crosses paths with Javier, a charming but dangerous hitman.
Letty and Javier become romantically involved, and she is drawn into his world of crime and morally ambiguous situations. As Letty tries to maintain her sobriety and be a responsible parent, her association with Javier pulls her into a web of heists, murders, and other criminal activities. The show explores Letty's internal conflict as she grapples with her desire for a better life while being seduced by the thrill and danger of the criminal underworld.
Throughout the series, Letty and Javier's relationship evolves as they navigate their own personal struggles, the consequences of their actions, and the complexities of their criminal endeavors. The show delves into themes of redemption, morality, and the blurred lines between right and wrong.