Possession (Sanyang)

Since childhood, Baek Yeonhwa’s heart belonged to only one man: her fiancé, Choi Hyun. But following their long-awaited wedding, the gentle boy she grew up with vanishes, replaced by a stranger whose intense, predatory gaze leaves her trembling. Her worst fears are realized when she discovers a dark truth: Hyun’s body has been hijacked by a powerful spirit named Mooyeong. Terrified and confused, Yeonhwa struggles to unravel when her true love disappeared, or if he ever existed at all. Yet, even as her mind breaks under the weight of the deception, Mooyeong's suffocating obsession with her only grows stronger. Source: Lezhin