Trauma surgeon Cathy grieves her attorney husband Owen after an explosion supposedly takes his life, only to encounter his ruthless mobster twin operating Boston's docks. Disturbed by identical mannerisms, she soon deduces Owen faked his demise to seize his dead brother's cartel, completely subordinating his marriage to criminal ambitions.
To preserve his undercover facade, Owen cohabits with his sister-in-law Evelyn, standing idle while Evelyn revokes Cathy's license and torches her clinic. Devastated by his betrayal, Cathy aligns with an elite federal prosecutor to tear down Owen's syndicate, leaving her former husband trapped in his web of bloody deceit.
