For Hannah Shapiro, a beautiful young American student, this particular nightmare began eight years ago in Los Angeles, when Jack Morgan, owner of Private—the world's most exclusive detective agency—saved her from a horrific death. She has fled her country, but can't flee her past. The terror has followed her to London, and now it is down to former Royal Military Police Sergeant Dan Carter, head of Private London, to save her all over again.

On a cold January morning, Jack Morgan stands inside the New York Stock Exchange with his former US Marine comrade whose company is being launched onto the market, eagerly awaiting the opening bell. But before the bell rings, a bullet rips through the air and finds its mark.In the aftermath of the murder, the victim's wife hires Jack to find the killer. As the head of Private, Jack has at his disposal the world's largest investigation agency. What he discovers shakes him to his core. Jack identifies another murder in Moscow that appears to be linked.

Thom and Jennifer Harlow are the perfect couple, with three perfect children. They maybe two of the biggest mega movie stars in the world, but they're also great parents, philanthropists, and just all-around good people. When they disappear without a word from their ranch, facts are hard to find. They live behind such a high wall of security and image control that even world-renowned Private Investigator Jack Morgan can't get to the truth.

When Jack Morgan opens the Mumbai branch of Private, the world's most elite detective agency, he hands the reins to top agent Santosh Wagh. Now, in this teeming metropolis of over 13 million people where the guilty have everywhere to hide, Santosh goes on the hunt for one elusive killer. A killer who is targeting seemingly unconnected women and placing strange objects at their death scenes in a series of chilling rituals.

Las Vegas is a city of contradictions: seedy and glamorous, secretive and wild, Vegas attracts people of all kinds - especially those with a secret to hide, or a life to leave behind. It's the perfect location for Lester Olsen's lucrative business. He gets to treat gorgeous, young women to five-star restaurants, splashy shows, and limo rides - and then he teaches them how to kill. Private Jack Morgan spends most of his time in Los Angeles, where his top investigation firm has its headquarters.