Saiyuki: Requiem - S0.E3

Sanjo Genzo and his motley crew, Sha Goyjo, Cho Hakkai, and Son Goku, are once again en route to India when they meet Horan, a young woman fleeing a monster that proves unusually difficult to kill. To thank them for her rescue, Horan invites the quartet back to the extravagant palace of her "master," Go Dogan. After a sumptuous dinner that delights Goku, the wanders retire to their rooms, where they're visited by murderous doppelgangers of each other. Naturally, Sanjo discovers the source of the evil and dispatches Dogan with a little assistance from his companions.