Kaylee Cavanaugh suffers a panic attack while shopping at the mall with her best friend, Emma. Her panic attack starts like any other but she has this overwhelming desire to scream, and screams a loud, unearthly scream from the back of her throat until she passes out. When she wakes up she is in a mental hospital and note sure how she got there. She learns that she started scratching at her throat and they want her to stay there to figure out what mental illness she has. Kaylee knows shes not crazy and doesnt belong there, but why does she scream like that and what are the dark shadows she sees? A fellow patient, Lydia, may hold the answers, as she seems to have special abilities also.