Twenty-six-year-old Dr. Emma Hart has spent her life doing everything right. Raised by a loving but sheltered family in a small town outside Chicago, Emma is kind, intelligent, and hopelessly innocent when it comes to love. She works long shifts as a resident physician at one of Chicago's busiest hospitals and dreams of becoming a trauma surgeon. Her life changes overnight when a mysterious patient is rushed into the emergency room under heavy federal protection. The patient is Nathaniel Reed, a thirty-four-year-old billionaire tech entrepreneur whose face appears regularly on magazine covers. He is handsome, powerful, and known for building a billion-dollar cybersecurity empire from nothing. Officially, Nathaniel was injured in a car accident. Unofficially, someone tried to kill him. And they're coming back to finish the job.