This is episode 26 of 31 of The Husband Who Wasn't There. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The closing stretch of the season, where the arc pays off.
Heiress Lan Xi discovers her husband has been replaced—he eats raw meat at night. She finds two versions of him in a warehouse. While investigating with her best friend, she faces constant danger. When she finally solves the mystery and sacrifices herself to save him, she learns it was all a lie.