She Knows You're Watching

Quick answer: 6 episodes, English original audio, and episodes 1–6 play right here tonight.

Gold-digging yet sharp-minded, she married wealthy Augustus for money. A year later, he fell to his death — leaving everything to his two stepsons. To avoid being kicked out, she fakes sweetness: the elder stays composed but stares at her photo and brings warm milk; the younger crawls into her room on rainy nights demanding to sleep beside her. One night, half-asleep, she feels someone pressing down. In the darkness, a voice answers her faint "mm."

Morning brings only red marks and twenty minutes of blacked-out surveillance footage. She sets up cameras, pretends to flee — only to discover her comforting online friend is both brothers sharing one account. They chase her, renounce inheritance, offer everything for her return. She signs the deed, becomes mistress of the house. This hunt — she was the house all along.