Three months after the death of her mother Elena, the painter Anna accidentally traveled to a parallel world through a maple leaf bookmark. There, my mother is still alive - healthy and bright, enjoying a free artistic life as a successful pianist. However, this world cruelly reveals that her parents have long since separated and formed new families, and Anna herself has never existed.
On one side are the fading memories of the real world: her mother gave up her musical dream for the family and eventually died of illness; her father, Justin, struggled with guilt and alienation; Anna's brush stopped in front of the unfinished portrait.
On the other side are the vivid possibilities of a parallel world: Elena shines on the stage, but occasionally feels the silence missing in life; Justin has a successful career but falls into a creative bottleneck; the two families are living on a trajectory without Anna without knowing it.
When Anna discovers that the secret of the bookmarks is far more than a travel tool - they are relics of the "dimensional resonance experiment" her mother conducted with her old love Thomas when she was young, and she herself has become the "anchor" connecting the two worlds - she faces a torn choice:
Should you immerse yourself in the reality of loss and remember your mother, or take the risk of embracing a world that has your mother but denies your own existence?
What's even more frightening is that the two worlds are gradually merging because of her connection. If the choice cannot be made "before frost," both realities may collapse simultaneously. Thomas's dying warning rings in his ears: "Fusion requires sacrifice. One anchor must willingly let go, or both will fall."
