Now here's a new one for you! In the South Korean erotic drama Hidden Face, Song Seung-heon stars as an orchestra conductor named Sung-jin who is betrothed to his talented first chair cellist, Shin Soo-yeon (Jo Yeo-jeong). But one day she disappears from their shared home, and as she never returns, the heartbroken Sung-jin assumes that his love has moved on. So, he does the same, striking up a romance with a new cellist in the orchestra, Kim Mi-joo (Park Ji-hyun). They get hot and heavy in Sung-jin's home without Sung-jin realizing that the woman he was engaged to, Shin Soo-yeon, is actually trapped in the walls, and able to see his every move, including sex! She's really missing out as Song Seung-heon has an awesome ass and bod, and he puts them to work with a pair of sex scenes. We'd like to have our face hidden... in that ass!