When elite contract killer Gray isn’t eliminating crime syndicates, he’s desperately trying to raise his uncontrollable five-year-old daughter, Lucy — a menace who scares off every nanny in sight. Enter Elena, a spirited young woman with a tragic past and an unshakable determination to care for children, no matter how chaotic. Their worlds collide in an explosive mix of gunfire, finger paint, and emotional baggage, as Elena finds herself in the most dangerous job she’s ever had — keeping a killer’s daughter alive, happy... and off the ceiling.