Henry has a sleep disorder. Occasionally, while awake, his mind will slip into a dream-like state, and he hallucinates. After running into an old friend, Emily, who has just moved into the same apartment building where he lives, Henry learns that Emily is trying to get away from a stalker who has been sending her poems and pictures. As Henry contemplates this, he begins to believe that his hallucinations may be glimpses of Emily's future. And if so, he has to save her.