"Diary of a Mad Black Woman" is a 2005 film written and directed by Tyler Perry. The story follows Helen (played by Kimberly Elise), a devoted wife who is blindsided when her husband, Charles (played by Steve Harris), abruptly leaves her for another woman. As Helen grapples with the betrayal and seeks a fresh start, she finds solace and support in her family, particularly from her fiery and unconventional grandmother, Madea (also played by Tyler Perry). The film explores themes of resilience, forgiveness, and self-discovery, blending drama and comedy to depict Helen's journey from heartbreak to empowerment and the importance of reclaiming one's life and happiness.