When hedge fund owner Jay Montgomery raids his own fund, he disappears with millions belonging to his investors --- who include his wife, Grace; his dead partner's widow; and a vengeful Russian oligarch. Longtime frenemies, Grace and widow Dana want their money back and reluctantly team up. They travel to the Ozarks, Switzerland and Monaco, trying to discover where Jay is hiding out.

Their pursuit turns deadly when two people connected to Jay are killed. The women fear they also may have become targets after a series of fake online transactions in their name.

Tracking down a disenchanted AI pioneer in the UK confirms their suspicions: Their every move is being monitored, analyzed and anticipated by a sophisticated AI system programmed to optimize outcomes, not protect people. But there is one thing the system cannot fully account for: the irrational, emotional, deeply human choices determined people make when everything is at stake.