Held Hostage: Why Me?

Ann is a very silent, introverted teenage girl. She never has much luck. She struggles with mental illness and her best and only friend runs away from her one day. She tries to follow her, but gets knocked out by someone. She wakes up in a dark room with her hands tied up. How she got there and where she is, she doesn't know. She only realizes she misses someone really badly and is crushing hard on that person.