Parker had the perfect marriage. Then Eden came home. Twenty years have passed since Dylan's beloved sister, Celeste, was brutally murdered. Now he plans an anniversary memorial for the sister he misses to this day. When their childhood friend, Eden, comes home to attend the memorial, Dylan invites her to stay with him and his wife, Parker. But Parker is apprehensive. She remembers a time when Eden had designs on her husband, and she worries she still carries a torch for him. Her fears seem confirmed when Eden openly flirts with Dylan and captivates their pre-teen daughter. As Parker desperately tries to hasten Eden's departure, Dylan resists, fondly remembering the time they spent as childhood friends. And when Eden brings up questions about who murdered Celeste, Parker's fears only escalate. She thinks her husband's mental health could suffer if Eden keeps digging. Can Parker get rid of Eden before she destroys her family? And why has Eden really come back to town? As the two old friends circle each other, past secrets are revealed and they find themselves hurtling into a vortex of unimaginable pain and terror. Contains mature themes.