A young woman's quest for revenge against the people who kidnapped and tormented her as a child leads her and a friend, who is also a victim of child abuse, on a terrifying journey into a living hell of depravity.

When her child goes missing, a mother looks to unravel the legend of the Tall Man, an entity who allegedly abducts children.

Following her aunt's death, Colleen and her daughters inherit her house. However, during their first night in their new home, murderers enter the home, putting Colleen in a situation where she must fight to save her daughters' lives. When the girls suffer a terrible trauma during the night, their disparate personalities diverge even further. The younger daughter, Beth, is said to become a famous horror author with a perfect family and life in Los Angeles, while her sister, Vera, can't cope, and loses her mind faced to an unshakable sense of paranoia. Sixteen years later the daughters and mother reunite at the house where Colleen and Vera continue to reside, it is then that strange events begin to take place.

Anna rushes to help her friend Lucy, who was viciously abused as a young child, clean up the aftermath of the revenge she visited upon her abductors 15 years later. Was Lucy the only victim? Are they alone in this idyllic home? What nightmares lie beneath the tranquil facade of this house of horror? In search of the truth they uncover a sadistic cult organization determined to make a Martyr of each subject rather than a simple victim.