Brilliant, quirky twenty-three-year-old China Mack is totally satisfied with her carefully ordered, data-driven life. A computer prodigy who landed a coveted programming job at the cutting-edge tech company Cysnet before even graduating from MIT, China is happiest when following her routine: shower before coffee, pizza only on Mondays, bedtime at ten thirty sharp. But then things start to get a little...unpredictable.

Just a few weeks ago, computer prodigy China Mack's typical night in involved Endor Star Wars pajamas and a sensible bedtime. Now she's dating gorgeous tech guru Jackson Cooper - one of Forbes's Top 10 Eligible Billionaires - much to the Twitterverse's delight. Turns out, going from socially inept hermit to poster girl for geek chic has its challenges. China's relationship gets even more complicated because her role heading the top-secret Vigilance program - where she's partnered with Superman clone Clark Slattery - makes her a target.

As the head of the government's secret Vigilance spy program, computer guru China Mack already has her hands full when her billionaire boyfriend, Jackson Cooper, asks for one of them in marriage. Thrown for a loop by the sudden proposal, China's usually well-ordered life takes another hit when someone tries to assassinate the president. Even that comes with a shocking twist: the primary suspect is none other than her ex-partner, Clark Slattery.

Computer genius China Mack may be the former head of Vigilance, the government’s clandestine spy program, but she can still be knocked off balance. And two back-to-back personal blows have thrown her into a tailspin. While her relationship with tech billionaire Jackson Cooper is on the rocks, China is testing the boundaries of what she feels for man-of-mystery Clark Slattery. But when China learns that her mother’s death sixteen years ago wasn’t an accident, she can’t rest until she knows the truth.

Julia Vargas is a cop with a mission. When she's not chasing down bad guys, Julia dedicates her time to investigating the Hangman serial killer...the same unsolved case that her father, Jim Vargas, was working on when he supposedly shot and killed himself three decades before. While rumors continue to swirl around her father's death, Julia attempts to hunt down the truth. The case once again hits dangerously close, however, when a woman's bones are discovered in a historic downtown home.