After her husband is killed by a drunk driver, Kelly Harris and her son TJ move to Ohio, into a sprawling Victorian house left to her husband by his grandmother. Dealing with her overwhelming grief is a struggle for Kelly as she adjusts to a new town. Life unexpectedly takes a turn when Kelly and TJ hear sounds of crying coming from the "Alexa" unit in her son's bedroom, followed by a little girl's voice asking for help. At first, Kelly is terrified and grabs her son, fleeing the house in the middle of the night and checking them into the nearest motel. But Kelly isn't willing to be chased from her home by a ghost, so she decides to find out more. By chance, Kelly meets Detective Rob Porter, who is investigating the disappearance of a child named Marilee, and is taken aback when Kelly's "ghost" mentions Marilee's name. Will Rob and Kelly find answers as to the identity of the ghost and what she knows of the missing child?