From the number one bestselling author and creator of the Netflix hit series, The Stranger, comes a riveting thriller starring a great new hero, Windsor Horne Lockwood III - or Win, as he is known to his few friends .

Over twenty years ago, heiress Patricia Lockwood was abducted during a robbery of her family's estate, then locked inside an isolated cabin for months. Patricia escaped, but so did her captors, and the items stolen from her family were never recovered.

Until now.

On New York's Upper West Side, a recluse is found murdered in his penthouse apartment, alongside two objects of note: a stolen Vermeer painting and a leather suitcase bearing the initials WHL3. For the first time in years, the authorities have a lead not only on Patricia's kidnapping but also on another FBI cold case - with the suitcase and painting both pointing them towards one man.

Windsor Horne Lockwood III - or Win as his few friends call him - doesn't know how his suitcase and his family's stolen painting ended up in this dead man's apartment. But he's interested - especially when the FBI tell him that the man who kidnapped his cousin was also behind an act of domestic terrorism, and that he may still be at large.

The two cases have baffled the FBI for decades. But Win has three things the FBI does not:: a personal connection to the case, a large fortune, and his own unique brand of justice ...