The Heart Is Deceitful Above All Things (2004)

The dysfunctional twenty-three-year-old Sarah takes her six-year-old natural son Jeremiah from the home of his beloved foster parents with the support of the social service to live with her. Along the years, the boy shares her insane and low lifestyle and is introduced to booze and drugs and mentally, physically and sexually abused by Sarah, her lovers and her religiously fanatic family.