Charlie is struggling in love and work when she finds an ad for a live-in assistant. To her surprise, she lands the job with billionaire heiress Cody "Casanova" De Franco. After accepting the role, she discovers that Cody is a mob boss who gives her an ultimatum: stay for protection or leave and face danger. Choosing to stay, Charlie learns the ins and outs of this risky life and starts to notice the softer side of Cody. As she falls for him, Charlie must choose between her feelings and her professional duties.