Vivienne Hart has survived three years as billionaire Julian Cross's live-in girlfriend by being everything he wants—obedient, beautiful, and silent. But when she overhears his friends call her his "obedient pet" at his exclusive private club, she realizes she's not the exception to his pattern of discarding women; she's just the one who stayed past her expiration date. Then an unknown texter begins sending her proof of Julian's darkest secrets—secrets about illegal operations, exploited women, and the real reason he married her. Armed with a safety deposit box key and forty-eight hours before Julian destroys the evidence, Vivienne must decide how far she'll go to take down the man who owns her life. To destroy him, she'll have to become the one thing he never expected: dangerous.