Horror starring Thora Birch. When young mortuary employee Karen (Birch) is woken by her alarm clock in the middle of the night, she is shocked to discover that she has been beaten up, and has no memory of it happening. Strange and terrifying things then begin to occur. At work, a corpse sits upright and grabs Karen, cursing her for an unknown transgression. Then ugly, twisted creatures begin stalking her and wherever she goes she feels their malevolent presence. Karen's only respite from this nightmarish existence comes at night when she goes to bed, as the moment she falls asleep she awakes as Susan, a normal girl with a normal life and job. Susan believes Karen to be her nightmare alter ego, while Karen believes Susan to be her dream of a better life. But which is the real world and which is a dream?