In present-day London’s Square Mile, rival adult heirs Callum Ashford of the centuries-old merchant bank Ashford & Sons and Elias Thorne of the predatory activist fund Thorne Capital are thrust together by a public scandal over a junior trader’s suicide and suspected market manipulation, their incandescent obsessive desire colliding with a private loyalty test that forces a moral choice between burying evidence of systemic client-fund abuse (to spare thousands of pensions and jobs) or exposing it (and destroying both their houses and each other).