Every morning, Claire wakes up angry at Marcus—and with no memory of the last 53 days. But she remembers the future. And in that future, her sister Emma dies at exactly 4:23 PM on October 27th. Trapped in a devastating time loop where the past vanishes but the future remains fixed, Claire must rely on a green notebook filled with her own handwriting to piece together a conspiracy that spans memory research, corporate cover-ups, and the mysterious death of her sister. As the clock counts down to 4:23 PM, Claire and Emma race to uncover the truth hidden in safety deposit box 1592—evidence that powerful people will kill to protect. But when you can't remember yesterday and can't change tomorrow, how do you save the person you love most? A gripping psychological thriller about memory, sacrifice, and the lengths we'll go to protect family—even when we forget why we started fighting. Perfect for fans of BEFORE I GO TO SLEEP and THE GIRL ON THE TRAIN.