Murder--that's what photographer Allye Jessup knows she witnessed as she departed her studio one evening. Waking with bruises on her neck and a foggy memory, she believes she survived an attack, but everyone seems to think she simply sustained a head injury from falling down the stairs outside her studio. Plagued by an undiagnosed health condition, she is torn between the haunting reality of what she may have seen and the possibility that her mind is playing tricks on her.