Maya is drugged by her stepmother and forced to spend a night with a thug. While fleeing, she accidentally has a one-night stand with the male lead, a mafia boss Vane. She later gives birth to his daughter, but the villainess steals the baby right after delivery. Maya is told the infant died and is forced to work as a cleaner.
Six years later, Maya becomes a cleaner at Vane's mansion. She has no idea that his mute daughter is actually the child she believed to be dead. When Maya unexpectedly makes the little girl speak for the first time, Vane hires her as the family's nanny. Gradually, Maya finds her footing in his home, and with the daughter secretly playing matchmaker, the two adults rediscover their feelings for each other—while Maya remains oblivious to the child's true identity until the truth finally comes to light.
