Seagrass Pier is the perfect place for Elin to hide from a killer, but an old love's ability to see her true heart could be her undoing. When Elin Summerall contracted a virus that damaged her heart, she was lucky to get a transplant. At first it was an overwhelmingly good gift. But then she began to remember a murder she never witnessed—the murder of her heart's donor. When she reveals what she knows to a disbelieving police officer, she's exposed as a witness and must flee for her life to a remote cottage on Hope Beach. Fearing what might happen to her daughter and mother, she asks Marc Everton for help, though she hasn't seen him since the night her father died. She remembers that night with shame, and she never told Marc about their daughter. Marc is less than convinced that Elin's "memories" are real. He is blindsided by the news about his daughter, but for her sake, he agrees to help. Then he begins to notice the small ways Elin is different. She now likes coffee, her musical tastes have changed, and she's ditched her jeans and sneakers for dresses and high heels. As Elin tries to stay alive and bring the killer to justice, she begins to doubt her own identity. Did her new heart save her life only to cause her to lose herself? And if she's really changed, why does her new heart love Marc just as much as her old one did?