The perfect husband doesn't exist. At least, that's what everyone says. Sang-Yong comes close. Charming, successful, attentive, and endlessly devoted to his wife, Ha-eun, he's the kind of man parents want their daughters to marry.

But perfection is only a mask.

Behind his warm smile and gentle voice hides a possessive obsession that grows stronger every night. Sang-Yong doesn't believe love should be shared, questioned, or escaped. Once he decides someone belongs to him, he'll do whatever it takes to keep them close—even if it means locking them away from the rest of the world.