Broke, freelance assassin Hailey accidentally causes her target—ruthless billionaire Charles—to lose his memory during a high-stakes chase. Backed into a corner, she hides him in her apartment and convinces him they are happily married. But as the fake domestic bliss turns into real, burning passion, Hailey's past catches up to her. When her syndicate issues a final ultimatum to execute Charles, she must choose between her deadliest contract and the man who accidentally stole her heart.