Yami Shibai 9

Synopsis

A young woman named Ami and her new husband Tōru visit her in-laws for the first time for her brother-in-law Takeshi's birthday. They all sit down to a very convivial dinner, where Ami is enthusiastically embraced as family. As they settle into bed, Ami realizes that, despite it being Takeshi's birthday, he wasn't the focus of the evening, but dismisses it and falls asleep. At 2 AM, Tooru awakens Ami for the birthday party. As they proceed down the hall, she hears strange sounds coming from behind a shoji door. Tooru enters the room, and her in-laws wish Takeshi a happy birthday. She watches in horror as one of the silhouettes splits open, and a body emerges from within. Tooru's mother bids Ami to join them, and opens the shoji door. Takeshi's skin is gray, slimy and scaly; he explains that members of this family shed their skins on their birthdays. Ami stumbles in disbelief, and they quickly corner her, insisting she'll be just like them, as she's already family. She sees herself in a mirror, and her skin turns gray and scaly...

(Source: Wikipedia)