When Emily is killed at eight months pregnant, one impossible detail shatters Sarah’s trust: Ethan casually says “Sunny,” the private nickname only she and Emily shared. From that moment, a sunflower becomes the key to a hidden past—revealing that “Old Tom,” the feared stalker, is actually Sarah’s husband, forever changed after rescuing her from a fire twenty-eight years ago. The real murderer is Ethan, seeking vengeance for his father, while the sunflower carries Emily’s last trace from beyond.