Dante, the ruthless underground mafia lord in Brooklyn, lost his wife and keeps his young son Leo isolated from all women. Mute girl Sylvie applies for his nanny job to pay off her mother’s crippling loan. Faced with constant tests from suspicious Dante and hostile Leo, she stays tough and calm, never yields to intimidation. After witnessing Dante kill a traitor, she refuses his forced marriage proposal on the spot. Gradually, her fearless character melts the cold father and son. Dante falls madly for the silent, unyielding Sylvie, clears all her debts and eliminates rival women scheming to seize his power. They overcome internal family conflicts and underground dangers, build a genuine warm family with Leo and their newborn baby, bound by silent yet fierce mutual affection.
