Isabelle Thompson's life shatters when her sister Elizabeth is forced to take a loan from the most powerful gang in New Orleans to save their mother's life. Just like everyone else who failed to pay back their debt, Elizabeth is dragged away to work for the serpents to pay back her debt.Isabelle, after eight months of trying to infiltrate the Serpents to save her sister and failing, suddenly comes up with an idea: borrow money from the Serpents, and when she is unable to pay, she would be taken as well. Unfortunately, things don't go as planned when Alexander Blackwood, the leader of the serpents, commands her to be his wife in order to pay her debt. Isabelle, left with no choice, agrees, as she believes being his wife meant being an insider, which would help her find her sister, but unfortunately her plans start to crumble when she begins to have a sinful attraction towards the man she was supposed to hate. Will she be able to carry out her plans, or will her desires for him make her lose her sister forever?