"The Heart Is Deceitful Above All Things" is a novel by J.T. Leroy, which explores themes of identity, trauma, and the complexities of human relationships. The story is narrated by a young boy named Jeremiah, who experiences a tumultuous childhood filled with neglect and abuse. The narrative delves into the struggles of Jeremiah as he navigates a world shaped by his troubled upbringing and the influence of his mother, Sarah. The book raises questions about the nature of love, betrayal, and the impact of one's past on their present, ultimately revealing the darker aspects of human emotions.