Melinda died on her twin daughters' first birthday. No explanation. No warning. Just gone. Eighteen years later, Rose finds her mother's diary buried in a box of old keepsakes-filled with memories, confessions, and things that don't add up. Rose doesn't just read it. She picks up where it left off. In the same pages, she begins writing about grief, family, and the growing suspicion that her mother's death was anything but accidental. Told entirely through diary entries, I'm Sorry is the story of two women, a generation apart, uncovering the truth together-one day at a time.